diff --git a/nixos/modules/services/security/authelia.nix b/nixos/modules/services/security/authelia.nix
index 143c441c7e15..28c5fd0a1df5 100644
--- a/nixos/modules/services/security/authelia.nix
+++ b/nixos/modules/services/security/authelia.nix
@@ -336,7 +336,7 @@ in
             ProtectProc = "noaccess";
             ProtectSystem = "strict";
 
-            RestrictAddressFamilies = [ "AF_INET" "AF_INET6" ];
+            RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
             RestrictNamespaces = true;
             RestrictRealtime = true;
             RestrictSUIDSGID = true;