diff --git a/test/cases/io-rfc-csv/0018/cmd b/test/cases/io-rfc-csv/0018/cmd
new file mode 100644
index 000000000..d115fb237
--- /dev/null
+++ b/test/cases/io-rfc-csv/0018/cmd
@@ -0,0 +1 @@
+mlr --icsv --lazy-quotes --ojson cat $CASEDIR/input
diff --git a/test/cases/io-rfc-csv/0018/experr b/test/cases/io-rfc-csv/0018/experr
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/cases/io-rfc-csv/0018/expout b/test/cases/io-rfc-csv/0018/expout
new file mode 100644
index 000000000..60134efea
--- /dev/null
+++ b/test/cases/io-rfc-csv/0018/expout
@@ -0,0 +1,7 @@
+[
+{
+  "a": "this",
+  "b": "is \"ok\" for us",
+  "c": "to do"
+}
+]
diff --git a/test/cases/io-rfc-csv/0018/input b/test/cases/io-rfc-csv/0018/input
new file mode 100644
index 000000000..3eeea4081
--- /dev/null
+++ b/test/cases/io-rfc-csv/0018/input
@@ -0,0 +1,2 @@
+a,b,c
+this,is "ok" for us,to do