diff --git a/app/src/layout/dock/index.ts b/app/src/layout/dock/index.ts
index 7d0e20112..eaf289b2e 100644
--- a/app/src/layout/dock/index.ts
+++ b/app/src/layout/dock/index.ts
@@ -594,7 +594,7 @@ export class Dock {
                                     type: "pin",
                                     tab,
                                     blockId: editor?.protyle?.block?.rootID,
-                                    isPreview: editor?.protyle?.preview ? editor.protyle.preview.element.classList.contains("fn__none") : false
+                                    isPreview: editor?.protyle?.preview ? !editor.protyle.preview.element.classList.contains("fn__none") : false
                                 });
                                 if (editor?.protyle?.title?.editElement) {
                                     outline.updateDocTitle(editor.protyle?.background?.ial);