diff --git a/du6/program.c b/du6/program.c
index e375368..91072df 100644
--- a/du6/program.c
+++ b/du6/program.c
@@ -69,11 +69,15 @@ int run_system(Tree *node) {
 
     char c[10];
     printf("%s\n", node->value);
-    if (fgets(c, sizeof(c), stdin) == NULL) {
-    	printf("Koniec vstupu\n");
-	return 0;
+    while (1) {
+    	if (fgets(c, sizeof(c), stdin) == NULL) {
+    		printf("Koniec vstupu\n");
+		return 0;
+    	}
+    	strip_newline(c);
+
+    	if (strlen(c) != 0) break;
     }
-    strip_newline(c);
 
     if (!node->left && !node->right) {
 	printf("Koniec vstupu\n");