diff --git a/scripts/github-indent-warnings.py b/scripts/github-indent-warnings.py
index 04f82d6c1..658192ced 100755
--- a/scripts/github-indent-warnings.py
+++ b/scripts/github-indent-warnings.py
@@ -9,7 +9,7 @@ if __name__ == '__main__':
     if len(sys.argv) != 1 and len(sys.argv) != 2:
         print(f'usage: {sys.argv[0]} <path/to/file>')
         print(f'usage: <command> | {sys.argv[0]}')
-        exit(1)
+        sys.exit(1)
 
     input_file = sys.stdin.fileno()
     if len(sys.argv) == 2:
diff --git a/scripts/magic-gen.py b/scripts/magic-gen.py
index 6a4c1dba9..1bb94eeb0 100755
--- a/scripts/magic-gen.py
+++ b/scripts/magic-gen.py
@@ -7,7 +7,7 @@ import sys
 def main(argv):
     if len(argv) != 3:
         print("Usage: magic-gen.py path/to/image.h path/to/magic.py")
-        exit(1)
+        sys.exit(1)
 
     magic_c_header = argv[1]
     magic_py = argv[2]
diff --git a/test/others/criu-ns/run.py b/test/others/criu-ns/run.py
index 0a36438e8..984cba7c3 100755
--- a/test/others/criu-ns/run.py
+++ b/test/others/criu-ns/run.py
@@ -38,7 +38,7 @@ def run_task_with_own_pty(task):
         fcntl.ioctl(fd_s, termios.TIOCSCTTY, 1)
         os.close(fd_s)
         task()
-        exit(0)
+        sys.exit(0)
 
     os.close(fd_s)
     fd_m = os.fdopen(fd_m, "rb")
@@ -65,7 +65,7 @@ def run_task_with_own_pty(task):
 
     if status != 0:
         print("task %s exited badly: %d" % (task.__name__, status))
-        exit(1)
+        sys.exit(1)
 
     return 0