diff --git a/src/backend/wayland/wl_backend.c b/src/backend/wayland/wl_backend.c
index 89f9b3e..ee70a5f 100644
--- a/src/backend/wayland/wl_backend.c
+++ b/src/backend/wayland/wl_backend.c
@@ -7258,8 +7258,8 @@ wl_window_get_client_attrs(WNativeWindow win, WClientAttributes *out)
     if (v && v->xw_surface) {
         if (v->xw_surface->surface && v->xw_surface->surface->mapped) {
             out->map_state = WCLIENT_VIEWABLE;
-            out->width     = v->xw_surface->width;
-            out->height    = v->xw_surface->height;
+            out->width     = v->xw_surface->width > 1 ? v->xw_surface->width : 640;
+            out->height    = v->xw_surface->height > 1 ? v->xw_surface->height : 480;
         } else {
             out->map_state = WCLIENT_UNMAPPED;
         }