diff --git a/c-example.c b/c-example.c
index 4560589..361d2fa 100644
--- a/c-example.c
+++ b/c-example.c
@@ -3,3 +3,8 @@
 int main(int argc, char *argv[])
 {
 }
+
+int f()
+{
+  return 0;
+}