diff --git a/du6/program.c b/du6/program.c
index 097d66a..88d266a 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -22,7 +22,7 @@ int main() {
                 }
             }
             freePlaces = (int)strtol(inputs[i], &ptr, 10);
-            if(freePlaces < 0){
+            if(freePlaces <= 0){
                 printf("Nespravny vstup\n");
                 return 0;
             }