diff --git a/clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java b/clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java
index cfe4d03e6a84b..e1351e392eaed 100644
--- a/clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java
+++ b/clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java
@@ -3195,8 +3195,9 @@ private void prepareJoinGroupAndVerifyReason(
     // TODO: this test triggers a bug with the CONSUMER group protocol implementation.
     //       The bug will be investigated and fixed so this test can use both group protocols.
     @ParameterizedTest
-    @EnumSource(value = GroupProtocol.class, names = "CLASSIC")
+    @EnumSource(value = GroupProtocol.class)
     public void configurableObjectsShouldSeeGeneratedClientId(GroupProtocol groupProtocol) {
+        CLIENT_IDS.clear();
         Properties props = new Properties();
         props.put(ConsumerConfig.GROUP_PROTOCOL_CONFIG, groupProtocol.name());
         props.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9999");