diff --git a/core/package.json b/core/package.json
index 39bc19f1b0c3506ca36d1e051b29cf5b15ab8bbe..a465af90c034b442eab59e9ca8981c968f2acfd9 100644
--- a/core/package.json
+++ b/core/package.json
@@ -29,7 +29,7 @@
     "spellcheck:make-drupal-dict": "rm -f misc/cspell/dictionary.txt && touch misc/cspell/dictionary.txt && yarn -s spellcheck:core --unique --wordsOnly | tr '[:upper:]' '[:lower:]' | tr -d \\\\\\\\ | LC_ALL=C sort -u -o misc/cspell/dictionary.txt",
     "spellcheck:core": "cspell \"**/*\" \".*\" \"../composer/**/*\" \"../composer.json\"",
     "vendor-update": "node ./scripts/js/assets.js",
-    "watch:ckeditor5": "webpack --mode development --config ./modules/ckeditor5/webpack.config.js --watch",
+    "watch:ckeditor5": "webpack --config ./modules/ckeditor5/webpack.config.js --watch",
     "build:ckeditor5": "webpack --config ./modules/ckeditor5/webpack.config.js"
   },
   "devDependencies": {