diff --git a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/metadata/DubboProtocolConfigSupplier.java b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/metadata/DubboProtocolConfigSupplier.java
index 1dfb8e73..775d360c 100644
--- a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/metadata/DubboProtocolConfigSupplier.java
+++ b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/metadata/DubboProtocolConfigSupplier.java
@@ -65,7 +65,6 @@ public class DubboProtocolConfigSupplier implements Supplier<ProtocolConfig> {
 		if (protocolConfig == null) {
 			protocolConfig = new ProtocolConfig();
 			protocolConfig.setName(DEFAULT_PROTOCOL);
-			protocolConfig.setPort(-1);
 		}
 
 		return protocolConfig;