diff --git a/mnexec.c b/mnexec.c
index 3171bab..3d24743 100644
--- a/mnexec.c
+++ b/mnexec.c
@@ -177,4 +177,6 @@ int main(int argc, char *argv[])
     }
     
     usage(argv[0]);
+
+    return 0;
 }