diff --git a/tests/testsuite.at b/tests/testsuite.at
index e42a0fd..d8f8f9a 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -70,3 +70,9 @@
 cat $abs_srcdir/codel/codel_test.ok > expout
 AT_CHECK([$OSMO_QEMU $abs_top_builddir/tests/codel/codel_test], [0], [expout], [ignore])
 AT_CLEANUP
+
+AT_SETUP([fn])
+AT_KEYWORDS([fn])
+cat $abs_srcdir/fn/FnTest.ok > expout
+AT_CHECK([$OSMO_QEMU $abs_top_builddir/tests/fn/FnTest], [0], [expout], [ignore])
+AT_CLEANUP