diff --git a/compiler-plugin/src/main/java/io/ballerina/c2c/handlers/ServiceHandler.java b/compiler-plugin/src/main/java/io/ballerina/c2c/handlers/ServiceHandler.java
index bf33c7ce..7dd60064 100644
--- a/compiler-plugin/src/main/java/io/ballerina/c2c/handlers/ServiceHandler.java
+++ b/compiler-plugin/src/main/java/io/ballerina/c2c/handlers/ServiceHandler.java
@@ -59,6 +59,10 @@ private void generate(List<ServiceModel> serviceModels) throws KubernetesPluginE
         }
         List<ServicePort> servicePorts = new ArrayList<>();
         for (ServiceModel serviceModel : serviceModels) {
+            // check if the port is already defined in list
+            if (servicePorts.stream().anyMatch(p -> p.getPort() == serviceModel.getPort())) {
+                continue;
+            }
             count++;
             if (null == serviceModel.getPortName()) {
                 serviceModel.setPortName(KubernetesUtils.getValidName("port-" + count + "-" + commonService.getName()));