diff --git a/include/mapnik/image_filter_types.hpp b/include/mapnik/image_filter_types.hpp
index 315ea8578..f06118903 100644
--- a/include/mapnik/image_filter_types.hpp
+++ b/include/mapnik/image_filter_types.hpp
@@ -26,7 +26,6 @@
 // mapnik
 #include <mapnik/config.hpp>
 #include <mapnik/color.hpp>
-#include <mapnik/config_error.hpp>
 #include <mapnik/util/variant.hpp>
 
 // stl
@@ -34,6 +33,7 @@
 #include <ostream>
 #include <iterator>  // for std::back_insert_iterator
 #include <functional> // std::ref
+#include <exception>
 
 namespace mapnik { namespace filter {
 
@@ -101,7 +101,7 @@ struct scale_hsla : image_filter_base
               a0 < 0 || a0 > 1 ||
               a1 < 0 || a1 > 1)
           {
-              throw config_error("scale-hsla values must be between 0 and 1");
+              throw std::runtime_error("scale-hsla values must be between 0 and 1");
           }
       }
     inline bool is_identity() const {