diff --git a/guide/english/c/for/index.md b/guide/english/c/for/index.md
index a5d385f724..0a93baf112 100644
--- a/guide/english/c/for/index.md
+++ b/guide/english/c/for/index.md
@@ -34,6 +34,8 @@ int main () {
     for (int i = 0; i < 5; i++) {
     	printf("Item on index %d is %d\n", i, array[i]);
     }
+    
+    return 0;
 }
 ```