diff --git a/packages/core/src/renderer/components/+namespaces/store.ts b/packages/core/src/renderer/components/+namespaces/store.ts
index bb01d6b1cc..6d522669d0 100644
--- a/packages/core/src/renderer/components/+namespaces/store.ts
+++ b/packages/core/src/renderer/components/+namespaces/store.ts
@@ -21,7 +21,7 @@ export interface NamespaceTree {
 interface Dependencies extends KubeObjectStoreDependencies {
   readonly storage: StorageLayer<string[] | undefined>;
   readonly clusterConfiguredAccessibleNamespaces: IComputedValue<string[]>;
-  readonly removeSubnamespace: (name: string) => void;
+  readonly removeSubnamespace: (name: string) => Promise<void>;
 }
 
 export class NamespaceStore extends KubeObjectStore<Namespace, NamespaceApi> {