diff --git a/devstack/settings b/devstack/settings
index 5b15a9b..db7c87c 100644
--- a/devstack/settings
+++ b/devstack/settings
@@ -7,3 +7,6 @@ enable_service sheepdog
 CINDER_ENABLED_BACKENDS=sheepdog:sheepdog
 TEMPEST_STORAGE_PROTOCOL=sheepdog
 BUILD_TIMEOUT=600
+
+# disable encrypted volume feature
+ATTACH_ENCRYPTED_VOLUME_AVAILABLE=False