diff --git a/src/backend/wayland/wl_backend.c b/src/backend/wayland/wl_backend.c
index f829885..7617f49 100644
--- a/src/backend/wayland/wl_backend.c
+++ b/src/backend/wayland/wl_backend.c
@@ -37,6 +37,8 @@
  * state; pointer_query/query_full return tracked coordinates.
  * Phase 55: window_get_rect returns real geometry for synthetic toplevel IDs;
  * window_move records WM-assigned x,y in the view struct.
+ * Phase 56: prop_set/get_wm_state persist WM state (workspace, miniaturized,
+ * shaded, etc.) in the view struct so wWindowGetSavedState works correctly.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -88,6 +90,8 @@ struct wl_toplevel_view {
     struct wl_listener       title_listener;    /* Phase 46: xdg_toplevel set_title */
     WNativeWindow            id;           /* synthetic handle, >= 0x10000000 */
     int                      x, y;         /* Phase 55: WM-assigned position */
+    long                    *wm_state;     /* Phase 56: saved WM state or NULL */
+    int                      wm_state_n;   /* Phase 56: element count */
     struct wl_list           link;         /* wl_state.toplevel_list */
 };
 
@@ -276,6 +280,7 @@ handle_toplevel_destroy(struct wl_listener *listener, void *data)
     wl_list_remove(&view->title_listener.link);
     wl_list_remove(&view->link);
     wl_state.managed_surface_count--;
+    if (view->wm_state) wfree(view->wm_state);  /* Phase 56 */
     wfree(view);
 }
 
@@ -864,11 +869,26 @@ static int  wl_prop_has_gtk_object_path(WNativeWindow win) { (void)win; return 0
 
 static void
 wl_prop_set_wm_state(WNativeWindow win, const long *data, int n)
-{ (void)win; (void)data; (void)n; }
+{
+    /* Phase 56: store WM state in the view struct for later retrieval. */
+    struct wl_toplevel_view *v = wl_find_view_by_id(win);
+    if (!v || !data || n <= 0) return;
+    if (v->wm_state) wfree(v->wm_state);
+    v->wm_state = wmalloc((size_t)n * sizeof(long));
+    memcpy(v->wm_state, data, (size_t)n * sizeof(long));
+    v->wm_state_n = n;
+}
 
 static int
 wl_prop_get_wm_state(WNativeWindow win, long **data_out)
-{ (void)win; *data_out = NULL; return 0; }
+{
+    /* Phase 56: return a heap copy of the stored WM state (caller frees). */
+    struct wl_toplevel_view *v = wl_find_view_by_id(win);
+    if (!v || !v->wm_state) { *data_out = NULL; return 0; }
+    *data_out = wmalloc((size_t)v->wm_state_n * sizeof(long));
+    memcpy(*data_out, v->wm_state, (size_t)v->wm_state_n * sizeof(long));
+    return v->wm_state_n;
+}
 
 /* ------------------------------------------------------------------ */
 /* Window map / unmap / geometry                                        */