diff --git a/nixos/modules/services/networking/prosody.nix b/nixos/modules/services/networking/prosody.nix
index b2f480920db5..8bf9770e62cf 100644
--- a/nixos/modules/services/networking/prosody.nix
+++ b/nixos/modules/services/networking/prosody.nix
@@ -886,6 +886,7 @@ in
           "internal_hashed"
           "cyrus"
           "anonymous"
+          "ldap"
         ];
         default = "internal_hashed";
         example = "internal_plain";