diff --git a/kiwmi/input/cursor.c b/kiwmi/input/cursor.c
index e63e518..b532426 100644
--- a/kiwmi/input/cursor.c
+++ b/kiwmi/input/cursor.c
@@ -116,7 +116,21 @@ request_set_cursor_notify(struct wl_listener *listener, void *data)
     struct kiwmi_cursor *cursor =
         wl_container_of(listener, cursor, request_set_cursor);
     struct wlr_seat_pointer_request_set_cursor_event *event = data;
-    // FIXME: this should verify if the window has focus
+
+    struct wlr_surface *focused_surface =
+        event->seat_client->seat->pointer_state.focused_surface;
+    struct wl_client *focused_client = NULL;
+
+    if (focused_surface && focused_surface->resource) {
+        focused_client = wl_resource_get_client(focused_surface->resource);
+    }
+
+    if (event->seat_client->client != focused_client) {
+        wlr_log(
+            WLR_DEBUG, "Ignoring request to set cursor on unfocused client");
+        return;
+    }
+
     wlr_cursor_set_surface(
         cursor->cursor, event->surface, event->hotspot_x, event->hotspot_y);
 }