diff --git a/barbican/server/single.yml b/barbican/server/single.yml
index eb2b30b..aab0b18 100644
--- a/barbican/server/single.yml
+++ b/barbican/server/single.yml
@@ -1,2 +1,9 @@
 classes:
 - service.barbican.server.single
+parameters:
+  _param:
+    internal_protocol: 'http'
+  barbican:
+    server:
+      identity:
+        protocol: ${_param:internal_protocol}