diff --git a/src/renderers/Form/DiffEditor.tsx b/src/renderers/Form/DiffEditor.tsx
index beb37ab1..e2a6f7bc 100644
--- a/src/renderers/Form/DiffEditor.tsx
+++ b/src/renderers/Form/DiffEditor.tsx
@@ -187,7 +187,6 @@ export class DiffEditorControlRenderer extends DiffEditor {
 
 @Renderer({
     test: /(^|\/)diff-editor$/,
-    sizeMutable: false,
     name: 'diff-editor'
 })
 export class DiffEditorRenderer extends DiffEditor {