diff --git a/studio/src/anim/timeline_animation.rs b/studio/src/anim/timeline_animation.rs
index 02e5c9c..754bc66 100644
--- a/studio/src/anim/timeline_animation.rs
+++ b/studio/src/anim/timeline_animation.rs
@@ -624,7 +624,7 @@ mod wasm {
 
     export interface UpdateKeyframes extends CustomEvent {
         type: "update-keyframes",
-        details: {
+        detail: {
             added: Record<string, Keyframe>,
             removed: string[]
         }