diff --git a/source/tlang/testing/simple_functions.t b/source/tlang/testing/simple_functions.t
index 938f7ef3..ec73d110 100644
--- a/source/tlang/testing/simple_functions.t
+++ b/source/tlang/testing/simple_functions.t
@@ -21,4 +21,5 @@ int banana(int arg1)
 
     k=1+h+apple(1, apple(2, 3))+k;
     
+    return 0;
 }
\ No newline at end of file