diff --git a/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h b/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h
index a188597..fe098ad 100644
--- a/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h
+++ b/helper/ccnb-parser/syntax-tree/ccnb-parser-block.h
@@ -26,10 +26,10 @@
 #include "ns3/ptr.h"
 
 // visitors
-#include "ns3/ccnb-parser-void-no-argu-visitor.h"
-#include "ns3/ccnb-parser-void-visitor.h"
-#include "ns3/ccnb-parser-no-argu-visitor.h"
-#include "ns3/ccnb-parser-visitor.h"
+#include "../visitors/ccnb-parser-void-no-argu-visitor.h"
+#include "../visitors/ccnb-parser-void-visitor.h"
+#include "../visitors/ccnb-parser-no-argu-visitor.h"
+#include "../visitors/ccnb-parser-visitor.h"
 
 namespace ns3 {
 namespace CcnbParser {