diff --git a/Ideen.md b/Ideen.md
index d60f2bf..37f6fdf 100644
--- a/Ideen.md
+++ b/Ideen.md
@@ -1,6 +1,5 @@
 # MUSS
 
-- api: admin Login case sensitivity (username "admin" == "AdMiN")
 - api: Config-Liste von Extra-Türchen (kein Buchstabe, nur manuelles Bild)
 - api: Config-Option "Überspringe leere Türchen" (standard ja)
 
@@ -20,3 +19,4 @@
 - Option "Leerzeichen ignorieren" (standard ja)
 - Nach einigen Sekunden: Meldung "Türchen anzeigen?"
 - `alert` durch bulma Komponente(n) ersetzen
+- api: admin Login case sensitivity (username "admin" == "AdMiN")
diff --git a/api/advent22_api/routers/_security.py b/api/advent22_api/routers/_security.py
index 13929ae..2f5f390 100644
--- a/api/advent22_api/routers/_security.py
+++ b/api/advent22_api/routers/_security.py
@@ -19,8 +19,14 @@ async def user_is_admin(
     True iff der user "admin" ist
     """
 
-    username_correct = secrets.compare_digest(credentials.username, cfg.admin.name)
-    password_correct = secrets.compare_digest(credentials.password, cfg.admin.password)
+    username_correct = secrets.compare_digest(
+        credentials.username.lower(),
+        cfg.admin.name.lower(),
+    )
+    password_correct = secrets.compare_digest(
+        credentials.password,
+        cfg.admin.password,
+    )
 
     return username_correct and password_correct