diff --git a/src/drawApp/graphics/TccKeyInteraction.ts b/src/drawApp/graphics/TccKeyInteraction.ts
index d5986dc..d4be1b3 100644
--- a/src/drawApp/graphics/TccKeyInteraction.ts
+++ b/src/drawApp/graphics/TccKeyInteraction.ts
@@ -148,9 +148,10 @@ export abstract class KeyInteraction<
   }
   onMouseDown(e: FederatedMouseEvent) {
     const target = e.target as DisplayObject;
-    const g = target.getGraphic<G>();
+    const g = target.getGraphic<TccKey>();
     if (!g) return;
     this.isMouseDown = true;
+    this.ratatingSprite = g._tccKey;
     this.mouseDownBeginPos = this.app.toCanvasCoordinates(e.global);
     this.mouseDownBeginRotation = this.ratatingSprite.rotation;
     this.changeRotation = this.mouseDownBeginRotation;