diff --git a/src/sugar/activity/bundlebuilder.py b/src/sugar/activity/bundlebuilder.py
index b189aaf3..2c6aff21 100644
--- a/src/sugar/activity/bundlebuilder.py
+++ b/src/sugar/activity/bundlebuilder.py
@@ -276,6 +276,8 @@ class Installer(object):
 
             shutil.copy(source, dest)
 
+        self.config.bundle.install_mime_type(self.config.source_dir)
+
 
 def cmd_dev(config, args):
     """Setup for development"""