diff --git a/bin/ceilometer-api-v2 b/bin/ceilometer-api-v2
index 3b650a542..a8c8934b4 100755
--- a/bin/ceilometer-api-v2
+++ b/bin/ceilometer-api-v2
@@ -49,7 +49,7 @@ if __name__ == '__main__':
     # Build the WSGI app
     root = app.setup_app(pecan_config,
                          extra_hooks=[acl.AdminAuthHook()])
-    root = acl.install(root, cfg.CONF)
+    root = acl.install(root, dict(cfg.CONF))
 
     # Create the WSGI server and start it
     host, port = '0.0.0.0', int(cfg.CONF.metering_api_port)
diff --git a/ceilometer/api/v1/app.py b/ceilometer/api/v1/app.py
index 8ab780685..a432068bc 100644
--- a/ceilometer/api/v1/app.py
+++ b/ceilometer/api/v1/app.py
@@ -55,7 +55,7 @@ def make_app(enable_acl=True, attach_storage=True):
 
     # Install the middleware wrapper
     if enable_acl:
-        return acl.install(app, cfg.CONF)
+        return acl.install(app, dict(cfg.CONF))
     return app
 
 # For documentation