diff --git a/include/mapnik/image_data.hpp b/include/mapnik/image_data.hpp
index c8c036594..b46fa4b7c 100644
--- a/include/mapnik/image_data.hpp
+++ b/include/mapnik/image_data.hpp
@@ -30,7 +30,6 @@
 #include <cassert>
 #include <cstring>
 #include <stdexcept>
-#include <iostream>
 
 namespace mapnik
 {