diff --git a/src/main/java/org/fachschaften/keycloak/form_extensions/SignupFormAction.java b/src/main/java/org/fachschaften/keycloak/form_extensions/SignupFormAction.java
index c6c5303baa815fb4a70465aa7513078533ec0221..a1ea7f1cef7da1d112f37660a0968d53e4d99046 100644
--- a/src/main/java/org/fachschaften/keycloak/form_extensions/SignupFormAction.java
+++ b/src/main/java/org/fachschaften/keycloak/form_extensions/SignupFormAction.java
@@ -76,6 +76,7 @@ public class SignupFormAction implements FormAction, FormActionFactory {
         "@fau.de",
         "@uni-erlangen.de",
         "@tu-freiberg.de",
+        "@uni-freiburg.de",
         "@uni-goettingen.de",
         "@uni-hamburg.de",
         "@thm.de",
@@ -157,6 +158,7 @@ public class SignupFormAction implements FormAction, FormActionFactory {
         ".fau.de",
         ".uni-erlangen.de",
         ".tu-freiberg.de",
+        ".uni-freiburg.de",
         ".uni-goettingen.de",
         ".uni-hamburg.de",
         ".thm.de",