diff --git a/assets/js/cell/live_editor.js b/assets/js/cell/live_editor.js
index 655541853..bc54a3840 100644
--- a/assets/js/cell/live_editor.js
+++ b/assets/js/cell/live_editor.js
@@ -157,6 +157,7 @@ class LiveEditor {
       renderLineHighlight: "none",
       theme: "custom",
       fontFamily: "JetBrains Mono, Droid Sans Mono, monospace",
+      fontSize: 14,
       tabIndex: -1,
       quickSuggestions: false,
       tabCompletion: "on",