diff --git a/video/out/wayland_common.c b/video/out/wayland_common.c
index 0806e048ed..c77015de2f 100644
--- a/video/out/wayland_common.c
+++ b/video/out/wayland_common.c
@@ -1490,7 +1490,11 @@ static int update_window_title(struct vo_wayland_state *wl, const char *title)
 {
     if (!wl->xdg_toplevel)
         return VO_NOTAVAIL;
-    xdg_toplevel_set_title(wl->xdg_toplevel, title);
+    /* The xdg-shell protocol requires that the title is UTF-8. */
+    void *tmp = talloc_new(NULL);
+    struct bstr b_title = bstr_sanitize_utf8_latin1(tmp, bstr0(title));
+    xdg_toplevel_set_title(wl->xdg_toplevel, b_title.start);
+    talloc_free(tmp);
     return VO_TRUE;
 }