diff --git a/packages/affine/block-paragraph/src/paragraph-block.ts b/packages/affine/block-paragraph/src/paragraph-block.ts
index d714c7a57e57..95bf18e725ad 100644
--- a/packages/affine/block-paragraph/src/paragraph-block.ts
+++ b/packages/affine/block-paragraph/src/paragraph-block.ts
@@ -202,7 +202,7 @@ export class ParagraphBlockComponent extends CaptionedBlockComponent<
             nearestHeading.collapsed &&
             !this.doc.readonly
           ) {
-            this.model.collapsed = false;
+            nearestHeading.collapsed = false;
           }
         }
         beforeType = type;