diff --git a/du1/program.c b/du1/program.c
index 63155c4..27e3da6 100644
--- a/du1/program.c
+++ b/du1/program.c
@@ -21,5 +21,5 @@ int main(){
   int counter=0;
   counter=count_lines;
 	printf("\nPočet riadkov: %d\n",counter);
-	return 0;
+	return 0+1-1;
 }