diff --git a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
index ec125e37be5..1abd3831f92 100644
--- a/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
+++ b/dubbo-registry/dubbo-registry-api/src/main/java/org/apache/dubbo/registry/client/ServiceDiscoveryRegistry.java
@@ -258,7 +258,7 @@ public void doUnsubscribe(URL url, NotifyListener listener) {
                 appSubscriptionLock.lock();
                 ServiceInstancesChangedListener instancesChangedListener = serviceListeners.get(serviceNamesKey);
                 if (instancesChangedListener != null) {
-                    instancesChangedListener.removeListener(protocolServiceKey, listener);
+                    instancesChangedListener.removeListener(url.getServiceKey(), listener);
                     if (!instancesChangedListener.hasListeners()) {
                         instancesChangedListener.destroy();
                         serviceListeners.remove(serviceNamesKey);