diff --git a/Makefile b/Makefile
index de9564ebb..be26fc0a2 100755
--- a/Makefile
+++ b/Makefile
@@ -26,6 +26,8 @@ clean:
 	@if test -e ".sconf_temp/"; then rm -r ".sconf_temp/"; fi
 	@find ./ -name "*.pyc" -exec rm {} \;
 	@find ./ -name "*.os" -exec rm {} \;
+	@find ./ -name "*.dylib" -exec rm {} \;
+	@find ./ -name "*.so" -exec rm {} \;
 	@find ./ -name "*.o" -exec rm {} \;
 	@find ./ -name "*.pyc" -exec rm {} \;
 	@if test -e "bindings/python/mapnik/paths.py"; then rm "bindings/python/mapnik/paths.py"; fi