diff --git a/src/app/api/image/canvas/route.js b/src/app/api/image/canvas/route.js
index 6a15e9bf..0a4d0be2 100644
--- a/src/app/api/image/canvas/route.js
+++ b/src/app/api/image/canvas/route.js
@@ -96,7 +96,7 @@ export async function POST(req) {
     /**
      * 크롭 이미지 이름을 결정한다.
      */
-    const Key = `Drawing/${objectNo}_${planNo}_${type}`
+    const Key = `Drawing/${objectNo}_${planNo}_${type}.png`
 
     /**
      * 크롭이 완료된 이미지를 업로드한다.