diff --git a/du3/program.c b/du3/program.c
index b689aab..38051a5 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -85,7 +85,7 @@ int main(void) {
                 case '*': result = a * b; break;
                 case '/':
                     if (b == 0) {
-                        printf("Chyba: delenie nulou.\n");
+                        printf("division by zero\n");
                         return 1;
                     }
                     result = a / b; break;