diff --git a/src/userdb.js b/src/userdb.js
index 63ee6b134..b49516a31 100644
--- a/src/userdb.js
+++ b/src/userdb.js
@@ -126,7 +126,14 @@ function getAllWithGroupIdsPaged(search, page, perPage, callback) {
 
     var query = `SELECT ${USERS_FIELDS},GROUP_CONCAT(groupMembers.groupId) AS groupIds FROM users LEFT OUTER JOIN groupMembers ON users.id = groupMembers.userId `;
 
-    if (search) query += ' WHERE (users.username LIKE ' + mysql.escape(`%${search}%`) + ') ';
+    if (search) {
+        query += ' WHERE ';
+        query += '(users.username LIKE ' + mysql.escape(`%${search.toLowerCase()}%`) + ')';
+        query += ' OR ';
+        query += '(users.email LIKE ' + mysql.escape(`%${search.toLowerCase()}%`) + ')';
+        query += ' OR ';
+        query += '(users.displayName LIKE ' + mysql.escape(`%${search.toLowerCase()}%`) + ')';
+    }
 
     query += ` GROUP BY users.id ORDER BY users.username ASC LIMIT ${(page-1)*perPage},${perPage} `;