diff --git a/src/testdir/test17a.in b/src/testdir/test17a.in
new file mode 100644
index 0000000..58c3504
--- /dev/null
+++ b/src/testdir/test17a.in
@@ -0,0 +1,3 @@
+This file is just to test "gf" in test 17.
+The contents is not importent.
+Just testing!