diff --git a/src/backend/wayland/wl_backend.c b/src/backend/wayland/wl_backend.c
index db05304..005481e 100644
--- a/src/backend/wayland/wl_backend.c
+++ b/src/backend/wayland/wl_backend.c
@@ -318,6 +318,7 @@ struct wl_frame_buf {
     int                          x, y;        /* position in output coords */
     int                          rel_x, rel_y; /* position relative to parent */
     int                          width, height;
+    pixman_image_t              *bg_pixmap;   /* background pixmap for window_clear */
     struct wl_list               link;        /* wl_state.frame_list */
 };
 
@@ -6824,6 +6825,7 @@ static void wl_window_set_background_pixmap(WNativeWindow win, unsigned long pix
 
     if (fb && fb->image) {
         dst_img = fb->image;
+        fb->bg_pixmap = (pixman_image_t *)(uintptr_t)pixmap;
     } else {
         dst_img = (pixman_image_t *)W_GetViewBacking(win);
     }
@@ -6865,15 +6867,22 @@ static void wl_window_clear(WNativeWindow win)
     }
     if (!img) return;
 
-    /* Fill with transparent black (ARGB 0x00000000) */
     int width = pixman_image_get_width(img);
     int height = pixman_image_get_height(img);
-    int stride = pixman_image_get_stride(img);
-    uint32_t *data = (uint32_t *)pixman_image_get_data(img);
-    
-    /* Simple memset for transparent black */
-    memset(data, 0, stride * height);
-    
+
+    /* If a background pixmap is set, repaint from it (like XClearWindow) */
+    if (fb && fb->bg_pixmap) {
+        pixman_image_composite32(PIXMAN_OP_SRC,
+                                 fb->bg_pixmap, NULL, img,
+                                 0, 0, 0, 0, 0, 0,
+                                 width, height);
+    } else {
+        /* No background pixmap — fill with transparent black */
+        int stride = pixman_image_get_stride(img);
+        uint32_t *data = (uint32_t *)pixman_image_get_data(img);
+        memset(data, 0, stride * height);
+    }
+
     /* Notify the scene buffer of the update */
     if (fb)
         wlr_scene_buffer_set_buffer_with_damage(fb->scene_buf, &fb->base, NULL);