diff --git a/src/main/cljc/dda/c4k_keycloak/keycloak.cljc b/src/main/cljc/dda/c4k_keycloak/keycloak.cljc
index c1109ec..6f68bdd 100644
--- a/src/main/cljc/dda/c4k_keycloak/keycloak.cljc
+++ b/src/main/cljc/dda/c4k_keycloak/keycloak.cljc
@@ -16,8 +16,7 @@
 (s/def ::keycloak-admin-user cp/bash-env-string?)
 (s/def ::keycloak-admin-password cp/bash-env-string?)
 
-(def config? (s/keys :req-un [::fqdn]
-                     :opt-un [::issuer
+(def config? (s/keys :req-un [::fqdn
                               ::namespace]))
 
 (def auth? (s/keys :req-un [::keycloak-admin-user