diff --git a/include/mapnik/polygon_pattern_symbolizer.hpp b/include/mapnik/polygon_pattern_symbolizer.hpp
index 7db35e5ce..5f6b027f9 100644
--- a/include/mapnik/polygon_pattern_symbolizer.hpp
+++ b/include/mapnik/polygon_pattern_symbolizer.hpp
@@ -26,6 +26,7 @@
 
 // mapnik 
 #include <mapnik/symbolizer.hpp>
+#include <mapnik/enumeration.hpp>
 
 namespace mapnik
 {