diff --git a/modules/users/users.js b/modules/users/users.js
index 62dad13..7468f6f 100644
--- a/modules/users/users.js
+++ b/modules/users/users.js
@@ -60,7 +60,7 @@ var users = function(dbot) {
 
                     // Replace users entry with new primary user
                     var usersIndex = knownUsers.users.indexOf(newAlias);
-                    knownUsers.splice(usersIndex, 1);
+                    knownUsers.users.splice(usersIndex, 1);
                     knownUsers.users.push(newParent);
 
                     // Remove alias for new parent & add alias for new alias