diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
index 5957310..518bdd1 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
@@ -164,7 +164,7 @@
     @Path("/{aid}/pageMap/{pid}/layers/{layerNo}/strokes")
     @DELETE
     @Produces(MediaType.APPLICATION_JSON)
-    public String deleteStrokes(@PathParam("aid") Integer aid, @PathParam("pid") Integer pid, @PathParam("layerNo") Integer layerNo, @FormParam("uid") Integer uid) {
+    public String deleteStrokes(@PathParam("aid") Integer aid, @PathParam("pid") Integer pid, @PathParam("layerNo") Integer layerNo, @QueryParam("uid") Integer uid) {
         var animation = gallery.getAnimationInformation(aid);
 
         var strokes = pages.get(pid).getLayers().get(layerNo).getStrokes();