diff --git a/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.cc b/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.cc
index e4baf54..bdc1f0a 100644
--- a/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.cc
+++ b/helper/ccnb-parser/syntax-tree/ccnb-parser-attr.cc
@@ -19,7 +19,7 @@
  */
 
 #include "ccnb-parser-attr.h"
-#include "ns3/ccnb-parser-common.h"
+#include "../ccnb-parser-common.h"
 
 namespace ns3 {
 namespace CcnbParser {
diff --git a/helper/ccnb-parser/syntax-tree/ccnb-parser-blob.cc b/helper/ccnb-parser/syntax-tree/ccnb-parser-blob.cc
index 690f30d..159643f 100644
--- a/helper/ccnb-parser/syntax-tree/ccnb-parser-blob.cc
+++ b/helper/ccnb-parser/syntax-tree/ccnb-parser-blob.cc
@@ -18,7 +18,7 @@
  * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
  */
 
-#include "ns3/ccnb-parser-blob.h"
+#include "ccnb-parser-blob.h"
 
 namespace ns3 {
 namespace CcnbParser {
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 {