diff --git a/src/main/cljc/dda/c4k_website/core.cljc b/src/main/cljc/dda/c4k_website/core.cljc
index e11683f..d006161 100644
--- a/src/main/cljc/dda/c4k_website/core.cljc
+++ b/src/main/cljc/dda/c4k_website/core.cljc
@@ -12,8 +12,9 @@
 ;       There must be a check or the config must be sorted first!
 (defn flatten-and-reduce-config
   [config]
-  (merge (-> config :websites first) (-> config :auth first) (dissoc config :issuer :volume-size)))
+  (merge (-> config :websites first) (-> config :auth first) (dissoc config :websites :auth)))
 
+; TODO: Find a better readable expression.
 (defn generate-configs [config]
   (loop [config config
          result []]
diff --git a/src/test/cljc/dda/c4k_website/core_test.cljc b/src/test/cljc/dda/c4k_website/core_test.cljc
new file mode 100644
index 0000000..dea9991
--- /dev/null
+++ b/src/test/cljc/dda/c4k_website/core_test.cljc
@@ -0,0 +1,59 @@
+(ns dda.c4k-website.core-test
+  (:require
+   #?(:clj [clojure.test :refer [deftest is are testing run-tests]]
+      :cljs [cljs.test :refer-macros [deftest is are testing run-tests]])
+   [clojure.spec.test.alpha :as st]
+   [dda.c4k-common.test-helper :as th]
+   [dda.c4k-common.base64 :as b64]
+   [dda.c4k-website.core :as cut]
+   [clojure.spec.alpha :as s]))
+
+(def websites
+  {:websites
+   [{:unique-name "example.io"
+     :fqdns ["example.org", "www.example.com"]
+     :gitea-host "finegitehost.net"
+     :gitea-repo "repo"
+     :branchname "main"}
+    {:unique-name "test.io"
+     :fqdns ["test.de" "test.org" "www.test.de" "www.test.org"]
+     :gitea-host "gitlab.de"
+     :gitea-repo "repo"
+     :branchname "main"}]})
+
+(def auth1
+  {:auth
+   [{:unique-name "example.io"
+     :username "someuser"
+     :authtoken "abedjgbasdodj"}
+    {:unique-name "test.io"
+     :username "someuser"
+     :authtoken "abedjgbasdodj"}]})
+
+(def auth2
+  {:auth
+   [{:unique-name "test.io"
+     :username "someuser"
+     :authtoken "abedjgbasdodj"}
+    {:unique-name "example.io"
+     :username "someuser"
+     :authtoken "abedjgbasdodj"}]})
+
+(def flattened-and-reduced-config
+  {:unique-name "example.io",
+   :fqdns ["example.org" "www.example.com"],
+   :gitea-host "finegitehost.net",
+   :gitea-repo "repo",
+   :branchname "main",
+   :username "someuser",
+   :authtoken "abedjgbasdodj"})
+
+; TODO: gec 2022/10/28: This might be the desired behavior.
+;       cut/flatten-and-reduce-config must be fixed accordingly.
+(deftest test-flatten-and-reduce-config
+  (is (=
+       (cut/flatten-and-reduce-config (merge websites auth1))
+       flattened-and-reduced-config))
+  (is (=
+       (cut/flatten-and-reduce-config (merge websites auth2))
+       flattened-and-reduced-config)))
\ No newline at end of file