diff --git a/include/mapnik/svg/svg_path_commands.hpp b/include/mapnik/svg/svg_path_commands.hpp
index 63680bd35..b5e01b5da 100644
--- a/include/mapnik/svg/svg_path_commands.hpp
+++ b/include/mapnik/svg/svg_path_commands.hpp
@@ -23,15 +23,14 @@
 #ifndef SVG_COMMANDS_HPP
 #define SVG_COMMANDS_HPP
 
+// mapnik
+#include <mapnik/global.hpp>
+//
 #include <boost/spirit/include/qi.hpp>
 #include <boost/spirit/include/phoenix_function.hpp>
 #include <boost/spirit/include/phoenix_core.hpp>
 #include <boost/spirit/include/phoenix_operator.hpp>
 
-#ifdef _WINDOWS
-#define _USE_MATH_DEFINES
-#include <math.h>
-#endif
 
 namespace mapnik { namespace svg {
 
diff --git a/include/mapnik/svg/svg_transform_grammar.hpp b/include/mapnik/svg/svg_transform_grammar.hpp
index a928b8a92..8f8c7f03f 100644
--- a/include/mapnik/svg/svg_transform_grammar.hpp
+++ b/include/mapnik/svg/svg_transform_grammar.hpp
@@ -25,7 +25,8 @@
 #ifndef SVG_TRANSFORM_GRAMMAR_HPP
 #define SVG_TRANSFORM_GRAMMAR_HPP
 
-
+// mapnik
+#include <mapnik/global.hpp>
 // agg
 #include <agg_trans_affine.h>
 // spirit
@@ -35,11 +36,6 @@
 #include <boost/spirit/include/phoenix_operator.hpp>
 #include <boost/spirit/home/phoenix/object/construct.hpp>
 
-#ifdef _WINDOWS
-#define _USE_MATH_DEFINES
-#include <math.h>
-#endif
-
 namespace mapnik { namespace svg {
 
     using namespace boost::spirit;