diff --git a/setup.py b/setup.py
index 696c787..ac7c5b9 100755
--- a/setup.py
+++ b/setup.py
@@ -239,6 +239,7 @@ def run(self):
          'pgi.cffilib.gir',
          'pgi.cffilib.glib',
          'pgi.cffilib.gobject',
+         'pgi.foreign',
          'pgi.overrides',
          'pgi.repository',
          'pgi.codegen',