diff --git a/src/utils/Dragger.ts b/src/utils/Dragger.ts
index 676ff8a53..b04f309e3 100644
--- a/src/utils/Dragger.ts
+++ b/src/utils/Dragger.ts
@@ -94,7 +94,7 @@ interface DraggerOptions {
    * Scale result points, can also be a function.
    * @default 1
    */
-  scale?: number;
+  scale?: number | (() => number);
 }
 
 const resetPos = () => ({ x: 0, y: 0 });