diff --git a/a1/program.c b/a1/program.c
index f112c4b..54351d9 100644
--- a/a1/program.c
+++ b/a1/program.c
@@ -32,7 +32,7 @@ int main() {
 
     // Check for division by zero
     if (op == '/' && num2 == 0) {
-        printf("CHYBA\n");
+        printf("ZLE\n");
         return 1;
     }