diff --git a/lib/auth.js b/lib/auth.js
index b2c787b9..4b14e42c 100644
--- a/lib/auth.js
+++ b/lib/auth.js
@@ -129,7 +129,7 @@ if (config.ldap) {
             id: 'LDAP-' + user.uidNumber,
             username: user.uid,
             displayName: user.displayName,
-            emails: [],
+            emails: user.mail ? [user.mail] : [],
             avatarUrl: null,
             profileUrl: null,
             provider: 'ldap',