diff --git a/doc/source/index.rst b/doc/source/index.rst
index f0c4c8c..e68aad8 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -8,6 +8,7 @@ An Enterprise Router is a cloud router service that connects your VPCs and on-pr
    :class: container-sbv
 
    .. service_card::
+      :environment: internal
       :service_type: er
       :umn: This document describes basic concepts, functions for using Enterprise Router.
       :api-ref: This document describes application programming interfaces (APIs) of Enterprise Router (ER) and provides API parameter description and example values.
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