diff --git a/runtime/syntax/testdir/input/progress_comments.p b/runtime/syntax/testdir/input/progress_comments.p
new file mode 100644
index 0000000..fc3f1cf
--- /dev/null
+++ b/runtime/syntax/testdir/input/progress_comments.p
@@ -0,0 +1,31 @@
+/*
+ * VIM_TEST_SETUP set filetype=progress
+ */
+
+define variable customer_name as character no-undo.
+
+/* The test setup above is an example of a multi-line comment.
+This is too; the leading * and left-hand alignment are not required. */
+for each customer no-lock
+    where customer.customer_id = 12345
+:
+    assign cust_name = customer.customer_name. /* Comments can also appear
+                                                  at the end of a line. */
+end. /* for each customer */
+
+/* Comments can be /* nested */. Here's the same query as above, but
+commented out this time:
+
+for each customer no-lock
+    where customer.customer_id = 12345
+:
+    assign cust_name = customer.customer_name. /* Comments can also appear
+                                                  at the end of a line. */
+end. /* for each customer */
+
+TODO: Note that /*/ does not end the comment, because it actually starts a
+new comment whose first character is a '/'. Now we need two end-comment
+markers to return to actual code. */ */
+
+display customer_name.
+