diff --git a/migrations/find_unique_user.js b/migrations/find_unique_user.js
new file mode 100644
index 0000000000..c72de09f36
--- /dev/null
+++ b/migrations/find_unique_user.js
@@ -0,0 +1,11 @@
+// mongo habitrpg ./node_modules/underscore/underscore.js ./migrations/find_unique_user.js
+
+/**
+ * There are some rare instances of lost user accounts, due to a corrupt user auth variable (see https://github.com/lefnire/habitrpg/wiki/User-ID)
+ * Past in the text of a unique habit here to find the user, then you can restore their UUID
+ */
+
+db.users.find().forEach(function(user){
+    var found = _.findWhere(user.tasks, {text: "Replace Me"})
+    if (found) printjson({id:user._id, auth:user.auth});
+})
\ No newline at end of file