diff --git a/ext/bg/js/search-query-parser.js b/ext/bg/js/search-query-parser.js
index 8dc2e30a..1c583bf1 100644
--- a/ext/bg/js/search-query-parser.js
+++ b/ext/bg/js/search-query-parser.js
@@ -62,7 +62,7 @@ class QueryParser {
         const scanningOptions = this.search.options.scanning;
         const scanningModifier = scanningOptions.modifier;
         if (!(
-            Frontend.isScanningModifierPressed(scanningModifier, e) ||
+            TextScanner.isScanningModifierPressed(scanningModifier, e) ||
             (scanningOptions.middleMouse && DOM.isMouseButtonDown(e, 'auxiliary'))
         )) {
             return;