diff --git a/src/i_decoder.hpp b/src/i_decoder.hpp
index a0abb8e3..2555f128 100644
--- a/src/i_decoder.hpp
+++ b/src/i_decoder.hpp
@@ -21,7 +21,7 @@
 #ifndef __ZMQ_I_DECODER_HPP_INCLUDED__
 #define __ZMQ_I_DECODER_HPP_INCLUDED__
 
-#include <stdint.h>
+#include "stdint.hpp"
 
 namespace zmq
 {
diff --git a/src/i_encoder.hpp b/src/i_encoder.hpp
index 734e1e1a..a2551cb6 100644
--- a/src/i_encoder.hpp
+++ b/src/i_encoder.hpp
@@ -21,7 +21,7 @@
 #ifndef __ZMQ_I_ENCODER_HPP_INCLUDED__
 #define __ZMQ_I_ENCODER_HPP_INCLUDED__
 
-#include <stdint.h>
+#include "stdint.hpp"
 
 namespace zmq
 {