diff --git a/blocksuite/framework/store/src/reactive/text.ts b/blocksuite/framework/store/src/reactive/text.ts
index 758161f34e..2fe8e45dac 100644
--- a/blocksuite/framework/store/src/reactive/text.ts
+++ b/blocksuite/framework/store/src/reactive/text.ts
@@ -160,7 +160,7 @@ export class Text {
         'Failed to insert text! Index or length out of range, index: ' +
           index +
           ', length: ' +
-          length +
+          content.length +
           ', text length: ' +
           this._yText.length
       );