diff --git a/src/js/contentscript.js b/src/js/contentscript.js
index 10c35debc..97cedddd5 100644
--- a/src/js/contentscript.js
+++ b/src/js/contentscript.js
@@ -234,7 +234,7 @@ vAPI.domFilterer = {
             this.cosmeticFiltersActivatedTimer === null
         ) {
             this.cosmeticFiltersActivatedTimer = vAPI.setTimeout(
-                this.cosmeticFiltersActivated,
+                this.cosmeticFiltersActivated.bind(this),
                 503
             );
         }