diff --git a/du4/program.c b/du4/program.c
index 53c882e..8d100bc 100644
--- a/du4/program.c
+++ b/du4/program.c
@@ -84,7 +84,7 @@ int main() {
 	printf("OK\n");
 	}
 	else{
-	printf("CHYBA\n");
+	printf("ZLE\n");
 	}
     if (feof(stdin)) {
         //printf("Dostal som sa na koniec suboru\n");