diff --git a/du3/program.c b/du3/program.c
index c5c1e35..dd1040c 100644
--- a/du3/program.c
+++ b/du3/program.c
@@ -45,12 +45,12 @@ int main()
     sscanf(dateStr , "%d.%d.%d" , &dd,&mm,&yy);
     if(!ValidateTime(dd,mm,yy)){
         printf("Nespravny datum\n");
-        return 1;
+        return 0;
     }
     char* res = strptime(dateStr, "%d.%m.%Y", &t);
     if (res == NULL) {
-        printf("error: can't parse date!\n");
-        return 1;
+        printf("Nespravny datum\n");
+        return 0;
     }
     
     t.tm_mday += 7;