diff --git a/software/osie-coupler/buildout.hash.cfg b/software/osie-coupler/buildout.hash.cfg
index f38d8be39b5a7f6792d988587335784b79b33247..8e72996257181197b6bb88c808a231711a4b901d 100644
--- a/software/osie-coupler/buildout.hash.cfg
+++ b/software/osie-coupler/buildout.hash.cfg
@@ -1,3 +1,3 @@
 [instance-profile]
 filename = instance.cfg.in
-md5sum = cf6c11bc335c75139695008128f1565a
+md5sum = 9ca5ddf6bed34861a17e3352dacc4813
diff --git a/software/osie-coupler/instance.cfg.in b/software/osie-coupler/instance.cfg.in
index 90c7a8590719a5084e310e34c4c6ccf74248232d..be3695064291bf05ff8d50ce2cb8e36a778b85ae 100644
--- a/software/osie-coupler/instance.cfg.in
+++ b/software/osie-coupler/instance.cfg.in
@@ -55,3 +55,5 @@ service = ${:etc}/service
 [publish-connection-parameter]
 recipe = slapos.cookbook:publish
 url-ipv6 = opc.tcp://[${instance-parameter:ipv6-random}]:${instance-parameter:configuration.opc_ua_port}
+username = ${instance-parameter:configuration.username}
+password = ${instance-parameter:configuration.password}