diff --git a/bindings/python/ns3module_helpers.cc b/bindings/python/ns3module_helpers.cc
index 85d0884c9..c7692a0bb 100644
--- a/bindings/python/ns3module_helpers.cc
+++ b/bindings/python/ns3module_helpers.cc
@@ -1,5 +1,5 @@
-#include "ns3/ref-count-base.h"
 #include "ns3module.h"
+#include "ns3/ref-count-base.h"
 
 
 namespace ns3{