diff --git a/basic/6_struct.c b/basic/6_struct.c
index 43785e7..29ec23d 100644
--- a/basic/6_struct.c
+++ b/basic/6_struct.c
@@ -14,4 +14,6 @@ int main()
     printf("Name: %s\n", person.name);
     printf("Age: %d\n", person.age);
     printf("Height: %.2f\n", person.height);
+
+    return 0;
 }