diff --git a/packages/data-center/src/workspace-unit-collection.ts b/packages/data-center/src/workspace-unit-collection.ts
index b51f5d160..c44ef3feb 100644
--- a/packages/data-center/src/workspace-unit-collection.ts
+++ b/packages/data-center/src/workspace-unit-collection.ts
@@ -122,9 +122,7 @@ export class WorkspaceUnitCollection {
     };
 
     const clear = () => {
-      scopedWorkspaceIds.forEach(id => {
-        remove(id);
-      });
+      remove(Array.from(scopedWorkspaceIds));
     };
 
     const update = (workspaceId: string, meta: UpdateWorkspaceUnitParams) => {