diff --git a/po/POTFILES.in b/po/POTFILES.in
index ec3c66257..028d7e278 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -26,6 +26,7 @@ src/ui/theme.c
 src/wayland/meta-wayland-tablet-pad.c
 src/x11/meta-x11-display.c
 src/x11/meta-x11-errors.c
+src/x11/meta-x11-selection-input-stream.c
 src/x11/session.c
 src/x11/window-props.c
 src/x11/xprops.c