diff --git a/Sources/XXMessengerClient/Utils/ListenersRegistry.swift b/Sources/XXMessengerClient/Utils/ListenersRegistry.swift
index 6378e3b00295483ec3cc14607ae0a90d8e7e632d..ca311d312866133d317622709d9d1606dcdd4bab 100644
--- a/Sources/XXMessengerClient/Utils/ListenersRegistry.swift
+++ b/Sources/XXMessengerClient/Utils/ListenersRegistry.swift
@@ -31,9 +31,6 @@ extension ListenersRegistry {
 extension ListenersRegistry {
   public static let unimplemented = ListenersRegistry(
     register: XCTUnimplemented("\(Self.self).register", placeholder: Cancellable {}),
-    registered: XCTUnimplemented("\(Self.self).registered", placeholder: Listener(
-      name: "unimplemented",
-      handle: { _ in }
-    ))
+    registered: XCTUnimplemented("\(Self.self).registered", placeholder: .unimplemented)
   )
 }