diff --git a/po/POTFILES.in b/po/POTFILES.in
index 0a4693cf..cb4db752 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -3,6 +3,7 @@ src/sugar3/activity/widgets.py
 src/sugar3/graphics/alert.py
 src/sugar3/graphics/colorbutton.py
 src/sugar3/graphics/objectchooser.py
+src/sugar3/graphics/popwindow.py
 src/sugar3/util.py
 src/sugar3/mime.py
 src/sugar3/speech.py