diff --git a/lib/checks/check_all.sh b/lib/checks/check_all.sh
index 9e5f0a6..c975542 100755
--- a/lib/checks/check_all.sh
+++ b/lib/checks/check_all.sh
@@ -13,8 +13,12 @@ CHECK_SCRIPT=${JUNEST_BASE}/lib/checks/check.sh
 
 $JUNEST_SCRIPT proot --fakeroot -- "$CHECK_SCRIPT" --skip-aur-tests
 $JUNEST_SCRIPT proot -- "$CHECK_SCRIPT" --skip-aur-tests --use-sudo
+# Test the backend command option
+$JUNEST_SCRIPT proot --backend-command "$JUNEST_HOME/usr/bin/proot-x86_64" -- exit
 $JUNEST_SCRIPT ns --fakeroot -- "$CHECK_SCRIPT" --skip-aur-tests
 $JUNEST_SCRIPT ns -- "$CHECK_SCRIPT" --use-sudo
+# Test the backend command option
+$JUNEST_SCRIPT ns --backend-command "$JUNEST_HOME/usr/bin/bwrap" -- exit
 sudo -E $JUNEST_SCRIPT groot -- "$CHECK_SCRIPT" --run-root-tests --skip-aur-tests
 
 # Test the wrappers work
diff --git a/lib/core/common.sh b/lib/core/common.sh
index 113fb14..ad2b0f7 100644
--- a/lib/core/common.sh
+++ b/lib/core/common.sh
@@ -67,6 +67,7 @@ ORIGIN_WD=$(pwd)
 DEFAULT_SH=("/bin/sh" "--login")
 
 # List of executables that are run in the host OS:
+BWRAP="${JUNEST_HOME}/usr/bin/bwrap"
 PROOT="${JUNEST_HOME}/usr/bin/proot-${ARCH}"
 GROOT="${JUNEST_HOME}/usr/bin/groot"
 CLASSIC_CHROOT=chroot
@@ -82,7 +83,6 @@ CP=cp
 # Used for checking user namespace in config.gz file
 ZGREP=zgrep
 UNSHARE=unshare
-BWRAP=bwrap
 
 LD_EXEC="$LD_LIB --library-path ${JUNEST_HOME}/usr/lib:${JUNEST_HOME}/lib"
 
@@ -146,9 +146,9 @@ function unshare_cmd(){
 }
 
 function bwrap_cmd(){
-    if $LD_EXEC ${JUNEST_HOME}/usr/bin/$BWRAP --dev-bind / / "${DEFAULT_SH[0]}" "-c" ":"
+    if $LD_EXEC $BWRAP --dev-bind / / "${DEFAULT_SH[0]}" "-c" ":"
     then
-        $LD_EXEC ${JUNEST_HOME}/usr/bin/$BWRAP "${@}"
+        $LD_EXEC $BWRAP "${@}"
     else
         die "Error: Something went wrong while executing bwrap command. Exiting"
     fi
diff --git a/lib/core/namespace.sh b/lib/core/namespace.sh
index f15bbb4..0567989 100644
--- a/lib/core/namespace.sh
+++ b/lib/core/namespace.sh
@@ -67,6 +67,7 @@ function _check_user_namespace() {
 # Globals:
 #   JUNEST_HOME (RO)          : The JuNest home directory.
 #   DEFAULT_SH (RO)           : Contains the default command to run in JuNest.
+#   BWRAP (RO):               : The location of the bwrap binary.
 # Arguments:
 #   backend_args ($1)         : The arguments to pass to bwrap
 #   no_copy_files ($2?)       : If false it will copy some files in /etc
@@ -82,7 +83,7 @@ function _check_user_namespace() {
 function run_env_as_bwrap_fakeroot(){
     check_nested_env
 
-    local backend_command="${1:-bwrap_cmd}"
+    local backend_command="${1:-$BWRAP}"
     local backend_args="$2"
     local no_copy_files="$3"
     shift 3
@@ -99,7 +100,7 @@ function run_env_as_bwrap_fakeroot(){
     local args=()
     [[ "$1" != "" ]] && args=("-c" "$(insert_quotes_on_spaces "${@}")")
 
-    JUNEST_ENV=1 "$backend_command" $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 $backend_args sudo "${DEFAULT_SH[@]}" "${args[@]}"
+    BWRAP="${backend_command}" JUNEST_ENV=1 bwrap_cmd $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 $backend_args sudo "${DEFAULT_SH[@]}" "${args[@]}"
 }
 
 
@@ -109,6 +110,7 @@ function run_env_as_bwrap_fakeroot(){
 # Globals:
 #   JUNEST_HOME (RO)         : The JuNest home directory.
 #   DEFAULT_SH (RO)          : Contains the default command to run in JuNest.
+#   BWRAP (RO):               : The location of the bwrap binary.
 # Arguments:
 #   backend_args ($1)        : The arguments to pass to bwrap
 #   no_copy_files ($2?)      : If false it will copy some files in /etc
@@ -123,7 +125,7 @@ function run_env_as_bwrap_fakeroot(){
 function run_env_as_bwrap_user() {
     check_nested_env
 
-    local backend_command="${1:-bwrap_cmd}"
+    local backend_command="${1:-$BWRAP}"
     local backend_args="$2"
     local no_copy_files="$3"
     shift 3
@@ -146,7 +148,7 @@ function run_env_as_bwrap_user() {
     local args=()
     [[ "$1" != "" ]] && args=("-c" "$(insert_quotes_on_spaces "${@}")")
 
-    JUNEST_ENV=1 "$backend_command" $COMMON_BWRAP_OPTION $backend_args "${DEFAULT_SH[@]}" "${args[@]}"
+    BWRAP="${backend_command}" JUNEST_ENV=1 bwrap_cmd $COMMON_BWRAP_OPTION $backend_args "${DEFAULT_SH[@]}" "${args[@]}"
 }
 
 
diff --git a/lib/core/proot.sh b/lib/core/proot.sh
index 1e258f2..f074b47 100644
--- a/lib/core/proot.sh
+++ b/lib/core/proot.sh
@@ -9,14 +9,14 @@
 # vim: ft=sh
 
 function _run_env_with_proot(){
-    local backend_command="${1:-proot_cmd}"
+    local backend_command="${1:-$PROOT}"
     local backend_args="$2"
     shift 2
 
     local args=()
     [[ "$1" != "" ]] && args=("-c" "$(insert_quotes_on_spaces "${@}")")
 
-    JUNEST_ENV=1 "${backend_command}" "${backend_args}" "${DEFAULT_SH[@]}" "${args[@]}"
+    PROOT="${backend_command}" JUNEST_ENV=1 proot_cmd "${backend_args}" "${DEFAULT_SH[@]}" "${args[@]}"
 }
 
 function _run_env_with_qemu(){
diff --git a/tests/unit-tests/test-common.sh b/tests/unit-tests/test-common.sh
index dd77077..0aba4b7 100755
--- a/tests/unit-tests/test-common.sh
+++ b/tests/unit-tests/test-common.sh
@@ -143,7 +143,7 @@ function test_unshare(){
 
 function test_bwrap(){
     assertCommandSuccess bwrap_cmd new_program
-    assertEquals "$(echo -e "ld_exec ${JUNEST_HOME}/usr/bin/$BWRAP --dev-bind / / /bin/sh -c :\nld_exec ${JUNEST_HOME}/usr/bin/$BWRAP new_program")" "$(cat $STDOUTF)"
+    assertEquals "$(echo -e "ld_exec $BWRAP --dev-bind / / /bin/sh -c :\nld_exec $BWRAP new_program")" "$(cat $STDOUTF)"
 
     BWRAP=false LD_EXEC=false assertCommandFail bwrap_cmd new_program
 }
diff --git a/tests/unit-tests/test-namespace.sh b/tests/unit-tests/test-namespace.sh
index 6b53e9c..72b9035 100755
--- a/tests/unit-tests/test-namespace.sh
+++ b/tests/unit-tests/test-namespace.sh
@@ -16,10 +16,7 @@ function oneTimeSetUp(){
 ## Mock functions ##
 function init_mocks() {
     function bwrap_cmd(){
-        echo "bwrap $@"
-    }
-    function mybwrap(){
-        echo "mybwrap $@"
+        echo "$BWRAP $@"
     }
 }
 
@@ -104,7 +101,7 @@ function test_is_user_namespace_enabled_with_userns_clone_file_enabled(){
 
 function test_run_env_as_bwrap_fakeroot() {
     assertCommandSuccess run_env_as_bwrap_fakeroot "" "" "false"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login" "$(cat $STDOUTF)"
 
     _test_copy_common_files
 }
@@ -118,7 +115,7 @@ function test_run_env_as_bwrap_fakeroot_with_backend_command() {
 
 function test_run_env_as_bwrap_user() {
     assertCommandSuccess run_env_as_bwrap_user "" "" "false"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION /bin/sh --login" "$(cat $STDOUTF)"
 
     _test_copy_common_files
     _test_copy_remaining_files
@@ -134,7 +131,7 @@ function test_run_env_as_bwrap_user_with_backend_command() {
 
 function test_run_env_as_bwrap_fakeroot_no_copy() {
     assertCommandSuccess run_env_as_bwrap_fakeroot "" "" "true" ""
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login" "$(cat $STDOUTF)"
 
     [[ ! -e ${JUNEST_HOME}/etc/hosts ]]
     assertEquals 0 $?
@@ -160,7 +157,7 @@ function test_run_env_as_bwrap_fakeroot_no_copy() {
 
 function test_run_env_as_bwrap_user_no_copy() {
     assertCommandSuccess run_env_as_bwrap_user "" "" "true" ""
-    assertEquals "bwrap $COMMON_BWRAP_OPTION /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION /bin/sh --login" "$(cat $STDOUTF)"
 
     [[ ! -e ${JUNEST_HOME}/etc/hosts ]]
     assertEquals 0 $?
@@ -186,14 +183,14 @@ function test_run_env_as_bwrap_user_no_copy() {
 
 function test_run_env_as_bwrap_fakeroot_with_backend_args() {
     assertCommandSuccess run_env_as_bwrap_fakeroot "" "--bind /usr /usr" "false"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 --bind /usr /usr sudo /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 --bind /usr /usr sudo /bin/sh --login" "$(cat $STDOUTF)"
 
     _test_copy_common_files
 }
 
 function test_run_env_as_bwrap_user_with_backend_args() {
     assertCommandSuccess run_env_as_bwrap_user "" "--bind /usr /usr" "false"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --bind /usr /usr /bin/sh --login" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --bind /usr /usr /bin/sh --login" "$(cat $STDOUTF)"
 
     _test_copy_common_files
     _test_copy_remaining_files
@@ -201,14 +198,14 @@ function test_run_env_as_bwrap_user_with_backend_args() {
 
 function test_run_env_as_bwrap_fakeroot_with_command() {
     assertCommandSuccess run_env_as_bwrap_fakeroot "" "" "false" "ls -la"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 sudo /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
 
     _test_copy_common_files
 }
 
 function test_run_env_as_bwrap_user_with_command() {
     assertCommandSuccess run_env_as_bwrap_user "" "" "false" "ls -la"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
 
     _test_copy_common_files
     _test_copy_remaining_files
@@ -216,14 +213,14 @@ function test_run_env_as_bwrap_user_with_command() {
 
 function test_run_env_as_bwrap_fakeroot_with_backend_args_and_command() {
     assertCommandSuccess run_env_as_bwrap_fakeroot "" "--bind /usr /usr" "false" "ls -la"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 --bind /usr /usr sudo /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --cap-add ALL --uid 0 --gid 0 --bind /usr /usr sudo /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
 
     _test_copy_common_files
 }
 
 function test_run_env_as_bwrap_user_with_backend_args_and_command() {
     assertCommandSuccess run_env_as_bwrap_user "" "--bind /usr /usr" "false" "ls -la"
-    assertEquals "bwrap $COMMON_BWRAP_OPTION --bind /usr /usr /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
+    assertEquals "$BWRAP $COMMON_BWRAP_OPTION --bind /usr /usr /bin/sh --login -c \"ls -la\"" "$(cat $STDOUTF)"
 
     _test_copy_common_files
     _test_copy_remaining_files