diff --git a/blocksuite/affine/model/src/elements/brush/brush.ts b/blocksuite/affine/model/src/elements/brush/brush.ts
index 3d05abcf90..42ceffab1b 100644
--- a/blocksuite/affine/model/src/elements/brush/brush.ts
+++ b/blocksuite/affine/model/src/elements/brush/brush.ts
@@ -46,7 +46,7 @@ export class BrushElementModel extends GfxPrimitiveElementModel<BrushProps> {
    */
   get commands() {
     if (!this._local.has('commands')) {
-      const stroke = getSolidStrokePoints(this.points, this.lineWidth);
+      const stroke = getSolidStrokePoints(this.points ?? [], this.lineWidth);
       const commands = getSvgPathFromStroke(stroke);
 
       this._local.set('commands', commands);