diff --git a/include/mapnik/enumeration.hpp b/include/mapnik/enumeration.hpp
index d57955b9f..1b6fc21b6 100644
--- a/include/mapnik/enumeration.hpp
+++ b/include/mapnik/enumeration.hpp
@@ -28,7 +28,6 @@
 #include <mapnik/debug.hpp>
 
 // stl
-#include <bitset>
 #include <iostream>
 #include <cstdlib>
 #include <algorithm>