diff --git a/src/groups.js b/src/groups.js
index 03b161c8eb..4dd4f69a5d 100644
--- a/src/groups.js
+++ b/src/groups.js
@@ -261,7 +261,7 @@
 	Groups.join = function(groupName, uid, callback) {
 		callback = callback || function() {};
 
-        Groups.exists(groupName, function(err, exists) {
+		Groups.exists(groupName, function(err, exists) {
 			if (exists) {
 				db.setAdd('group:' + groupName + ':members', uid, callback);
 			} else {