diff --git a/plugins/discovery-ec2/src/main/java/org/elasticsearch/cloud/aws/AwsEc2ServiceImpl.java b/plugins/discovery-ec2/src/main/java/org/elasticsearch/cloud/aws/AwsEc2ServiceImpl.java
index 26e001c2666..7a26a4ff142 100644
--- a/plugins/discovery-ec2/src/main/java/org/elasticsearch/cloud/aws/AwsEc2ServiceImpl.java
+++ b/plugins/discovery-ec2/src/main/java/org/elasticsearch/cloud/aws/AwsEc2ServiceImpl.java
@@ -134,6 +134,8 @@ public class AwsEc2ServiceImpl extends AbstractLifecycleComponent<AwsEc2Service>
                 endpoint = "ec2.us-west-2.amazonaws.com";
             } else if (region.equals("ap-southeast") || region.equals("ap-southeast-1")) {
                 endpoint = "ec2.ap-southeast-1.amazonaws.com";
+            } else if (region.equals("us-gov-west") || region.equals("us-gov-west-1")) {
+                endpoint = "ec2.us-gov-west-1.amazonaws.com";
             } else if (region.equals("ap-southeast-2")) {
                 endpoint = "ec2.ap-southeast-2.amazonaws.com";
             } else if (region.equals("ap-northeast") || region.equals("ap-northeast-1")) {