diff --git a/po/POTFILES.in b/po/POTFILES.in
index 04172f7b9..01deec29e 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -1,4 +1,5 @@
 # List of source files containing translatable strings.
+gtk/tunnel_config.ui
 gtk/calllogs.c
 gtk/conference.c
 gtk/logging.c