diff --git a/skeleton/skeleton.c b/skeleton/skeleton.c
index 5bc727fe2851fc1dd3ca31c3b2e63b06070ec7f6..82a81896b9c6cef26d301e5b9ce6def17f5c9e73 100644
--- a/skeleton/skeleton.c
+++ b/skeleton/skeleton.c
@@ -44,6 +44,7 @@ int main(int argc, char **argv) {
         break;
     default:
         printf("Choice non available\n");
+        return EXIT_FAILURE;
         break;
     }
     print(size, res);