diff --git a/frontend/src/viewer/logic/useDetailWorkspace.ts b/frontend/src/viewer/logic/useDetailWorkspace.ts
index a5f64ff..3e9cec4 100644
--- a/frontend/src/viewer/logic/useDetailWorkspace.ts
+++ b/frontend/src/viewer/logic/useDetailWorkspace.ts
@@ -45,8 +45,6 @@ interface UseDetailWorkspaceResult {
   openDetailPanel: ReturnType<typeof useDetailPanel>['openDetailPanel'];
   closeDetailPanel: ReturnType<typeof useDetailPanel>['closeDetailPanel'];
   handleDetailPanelClose: () => void;
-  previewActive: boolean;
-  previewWorkspaceDocument: Document | null;
   resolveThumbnailUrlForDoc: (doc: Document | null) => string | null;
   resolveFolderPath: (folderId?: Identifier | 'root') => Array<{ id: Identifier | 'root'; name: string }>;
 }
@@ -198,9 +196,6 @@ const useDetailWorkspace = ({
     openDetailPanel,
     closeDetailPanel,
     handleDetailPanelClose,
-    inspectDocument,
-    previewActive,
-    previewWorkspaceDocument,
     resolveThumbnailUrlForDoc,
     resolveFolderPath,
   };