diff --git a/contrib/diagnose_corruption/check_flipped_bits.c b/contrib/diagnose_corruption/check_flipped_bits.c
index 8555959e..23b53287 100644
--- a/contrib/diagnose_corruption/check_flipped_bits.c
+++ b/contrib/diagnose_corruption/check_flipped_bits.c
@@ -214,4 +214,6 @@ int main(int argc, char* argv[]) {
   perturb_bytes(&stuff);
 
   free_stuff(&stuff);
+
+  return 0;
 }
\ No newline at end of file