diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..677a6fc
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.build*
diff --git a/server.js b/server.js
index 6afc488..84baca5 100644
--- a/server.js
+++ b/server.js
@@ -35,6 +35,7 @@ Meteor.methods({
         Hooks.onLoggedIn(this.userId);
     },
     eventsOnLoggedOut: function (userId) {
+        check(userId, Number);
         // Fire the loggedOut event
         Hooks.onLoggedOut(userId);
     }
diff --git a/versions.json b/versions.json
new file mode 100644
index 0000000..fca353a
--- /dev/null
+++ b/versions.json
@@ -0,0 +1,15 @@
+{
+  "dependencies": [
+    [
+      "meteor",
+      "1.1.3"
+    ],
+    [
+      "underscore",
+      "1.0.1"
+    ]
+  ],
+  "pluginDependencies": [],
+  "toolVersion": "meteor-tool@1.0.35",
+  "format": "1.0"
+}
\ No newline at end of file