diff --git a/lib/kubeclient/aws_eks_credentials.rb b/lib/kubeclient/aws_eks_credentials.rb
index 68169f7b..8194d012 100644
--- a/lib/kubeclient/aws_eks_credentials.rb
+++ b/lib/kubeclient/aws_eks_credentials.rb
@@ -39,7 +39,7 @@ def token(credentials, eks_cluster, region: 'us-east-1', is_credentials_provider
           http_method: 'GET',
           url: "https://sts.#{region}.amazonaws.com/?Action=GetCallerIdentity&Version=2011-06-15",
           body: '',
-          credentials: credentials,
+          credentials: is_credentials_provider ? credentials.credentials : credentials,
           expires_in: 60,
           headers: {
             'X-K8s-Aws-Id' => eks_cluster