diff --git a/po/POTFILES.in b/po/POTFILES.in
index a56106aaf0..bd5b92b960 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -269,6 +269,7 @@ app/pdb/vectors-cmds.c
 app/plug-in/gimpenvirontable.c
 app/plug-in/gimpinterpreterdb.c
 app/plug-in/gimpplugin-message.c
+app/plug-in/gimpplugin-progress.c
 app/plug-in/gimpplugin.c
 app/plug-in/gimppluginmanager-call.c
 app/plug-in/gimppluginmanager-restore.c