diff --git a/nifi-extension-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/rds/AwsRdsIamDatabasePasswordProvider.java b/nifi-extension-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/rds/AwsRdsIamDatabasePasswordProvider.java
index 1df43828f2f2..dd7ff1547616 100644
--- a/nifi-extension-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/rds/AwsRdsIamDatabasePasswordProvider.java
+++ b/nifi-extension-bundles/nifi-aws-bundle/nifi-aws-processors/src/main/java/org/apache/nifi/processors/aws/rds/AwsRdsIamDatabasePasswordProvider.java
@@ -67,7 +67,7 @@ public class AwsRdsIamDatabasePasswordProvider extends AbstractControllerService
             .name("Token Request Endpoint")
             .description("Token Request Endpoint in hostname:port format used for IAM token signing, overriding the hostname and port from the JDBC URL.")
             .required(false)
-            .addValidator(StandardValidators.HOSTNAME_PORT_LIST_VALIDATOR)
+            .addValidator(StandardValidators.HOSTNAME_PORT_VALIDATOR)
             .build();
 
     private static final List<PropertyDescriptor> PROPERTY_DESCRIPTORS = List.of(