diff --git a/plugins/exponential-volume/front.ts b/plugins/exponential-volume/front.ts
index 931acb09..3f2c5d0c 100644
--- a/plugins/exponential-volume/front.ts
+++ b/plugins/exponential-volume/front.ts
@@ -30,7 +30,7 @@ const exponentialVolume = () => {
         ? storedOriginalVolume
         : calculatedOriginalVolume;
     },
-    set(originalVolume: number) {
+    set(this: HTMLMediaElement, originalVolume: number) {
       const lowVolume = originalVolume ** EXPONENT;
       storedOriginalVolumes.set(this, originalVolume);
       propertyDescriptor?.set?.call(this, lowVolume);