diff --git a/services/web/frontend/js/ide/editor/directives/aceEditor/spell-check/SpellCheckManager.js b/services/web/frontend/js/ide/editor/directives/aceEditor/spell-check/SpellCheckManager.js
index 9bd220e5cd..e10826a502 100644
--- a/services/web/frontend/js/ide/editor/directives/aceEditor/spell-check/SpellCheckManager.js
+++ b/services/web/frontend/js/ide/editor/directives/aceEditor/spell-check/SpellCheckManager.js
@@ -337,6 +337,7 @@ define([], function() {
         let rowIdx = changedRowNums[row]
         line = this.blankOutBlacklistedCommands(line)
         var result
+        WORD_REGEX.lastIndex = 0 // reset global stateful regexp for this usage
         while ((result = WORD_REGEX.exec(line))) {
           let word = result[0]
           if (word[0] === "'") {