diff --git a/ets2panda/test/runtime/ets/fff.ets b/ets2panda/test/runtime/ets/fff.ets
new file mode 100644
index 0000000000000000000000000000000000000000..fcc71b2a465a03a93e9e433ddf5b44b87e0985d9
--- /dev/null
+++ b/ets2panda/test/runtime/ets/fff.ets
@@ -0,0 +1,3 @@
+function foo(x: number) {
+    return x as int;
+}
\ No newline at end of file