diff --git a/setupext.py b/setupext.py
index 4ffdfb1ba786..3f374b4d4e46 100644
--- a/setupext.py
+++ b/setupext.py
@@ -1540,6 +1540,7 @@ def get_extension(self):
         Numpy().add_flags(ext)
         LibAgg().add_flags(ext)
         CXX().add_flags(ext)
+        ext.extra_link_args.extend(['-framework', 'Cocoa'])
         return ext