diff --git a/packages/codemirror/src/index.ts b/packages/codemirror/src/index.ts
index 55191d8b1..8ee32032e 100644
--- a/packages/codemirror/src/index.ts
+++ b/packages/codemirror/src/index.ts
@@ -1,12 +1,13 @@
 import { defaultKeymap } from "@codemirror/commands";
-import { EditorView, keymap, type EditorViewConfig } from "@codemirror/view";
+import { EditorView, keymap, lineNumbers, type EditorViewConfig } from "@codemirror/view";
 
 export default class CodeMirror extends EditorView {
     constructor(config: EditorViewConfig) {
         super({
             ...config,
             extensions: [
-                keymap.of(defaultKeymap)
+                keymap.of(defaultKeymap),
+                lineNumbers()
             ]
         });
     }