diff --git a/pgo/pgo.c b/pgo/pgo.c
index 6d4dab17..2fd4e837 100644
--- a/pgo/pgo.c
+++ b/pgo/pgo.c
@@ -68,6 +68,7 @@ render_resize_force(struct terminal *term, int width, int height)
 void render_refresh(struct terminal *term) {}
 void render_refresh_csd(struct terminal *term) {}
 void render_refresh_title(struct terminal *term) {}
+void render_refresh_app_id(struct terminal *term) {}
 
 bool
 render_xcursor_is_valid(const struct seat *seat, const char *cursor)