diff --git a/core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala b/core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala
index a5e7972b9..789aa97d5 100644
--- a/core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala
+++ b/core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala
@@ -1653,9 +1653,11 @@ class PlaintextAdminIntegrationTest extends BaseAdminIntegrationTest {
       new AlterConfigOp(new ConfigEntry(LogConfig.RetentionMsProp, ""), AlterConfigOp.OpType.DELETE)
     ).asJavaCollection
 
+    // Test SET and APPEND on non-existent properties
     val topic2AlterConfigs = Seq(
       new AlterConfigOp(new ConfigEntry(LogConfig.MinCleanableDirtyRatioProp, "0.9"), AlterConfigOp.OpType.SET),
-      new AlterConfigOp(new ConfigEntry(LogConfig.CompressionTypeProp, "lz4"), AlterConfigOp.OpType.SET)
+      new AlterConfigOp(new ConfigEntry(LogConfig.CompressionTypeProp, "lz4"), AlterConfigOp.OpType.SET),
+      new AlterConfigOp(new ConfigEntry(LogConfig.CleanupPolicyProp, LogConfig.Delete), AlterConfigOp.OpType.APPEND)
     ).asJavaCollection
 
     var alterResult = client.incrementalAlterConfigs(Map(