diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/PagesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/PagesRest.java
index 567ee6e..e415b33 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/PagesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/PagesRest.java
@@ -69,7 +69,7 @@
     @Path("/{aid}/pageMap/{pid}")
     @DELETE
     @Produces(MediaType.APPLICATION_JSON)
-    public void deletePage(@PathParam("aid") Integer aid, @PathParam("pid") Integer pid) {
+    public Integer deletePage(@PathParam("aid") Integer aid, @PathParam("pid") Integer pid) {
         var pages = gallery.getAnimationByAid(aid).getPageMap();
         var response = Response.status(Response.Status.NO_CONTENT);
 
@@ -89,8 +89,7 @@
             if (removedPageNo < pageNo) page.setPageNo(pageNo - 1);
         }
 
-        response = Response.status(200).entity("ページを削除しました。");
-        throw new WebApplicationException(response.build());
+        return pages.size();
     }
 
     // _/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/