diff --git a/asset/js/widget/Completer.js b/asset/js/widget/Completer.js
index 6d6038024..5f884c691 100644
--- a/asset/js/widget/Completer.js
+++ b/asset/js/widget/Completer.js
@@ -9,6 +9,7 @@ define(["../notjQuery"], function ($) {
             this.selectionStartInput = null;
             this.selectionActive = false;
             this.mouseSelectionActive = false;
+            this.scrolling = false;
             this.nextSuggestion = null;
             this.activeSuggestion = null;
             this.suggestionKiller = null;
@@ -34,6 +35,8 @@ define(["../notjQuery"], function ($) {
             $(this.termSuggestions).on('focusout', '[type="button"]', this.onFocusOut, this);
             $(this.termSuggestions).on('click', '[type="button"]', this.onSuggestionClick, this);
             $(this.termSuggestions).on('keydown', '[type="button"]', this.onSuggestionKeyDown, this);
+            $(this.termSuggestions).on('scroll', e => this.scrolling = true);
+            $(this.termSuggestions).on('scrollend', e => this.scrolling = false);
 
             if (this.selectionEnabled()) {
                 $(this.termSuggestions).on('keyup', '[type="button"]', this.onSuggestionKeyUp, this);
@@ -475,6 +478,10 @@ define(["../notjQuery"], function ($) {
                 return;
             }
 
+            if (this.scrolling) {
+                return;
+            }
+
             let input = event.target;
             let completedInput = this.completedInput;
             this.suggestionKiller = setTimeout(() => {