diff --git a/Nodejs.py b/Nodejs.py
index f41d083..d03f13e 100644
--- a/Nodejs.py
+++ b/Nodejs.py
@@ -72,7 +72,9 @@ def create_output_panel():
 
 def plugin_loaded():
     check_and_install_dependencies()
-    generate_completions()      
+    st_pref = sublime.load_settings('NodeJS.sublime-settings')
+    if st_pref.get('run_builddocs_at_startup'):
+        generate_completions()
     if Nvm.is_installed():
         info('Node.js version from NVM is ' + Nvm.node_version())
 
diff --git a/Nodejs.sublime-settings b/Nodejs.sublime-settings
index d2cfc19..0088e1f 100644
--- a/Nodejs.sublime-settings
+++ b/Nodejs.sublime-settings
@@ -8,6 +8,8 @@
   "npm_command": false,
   // as 'NODE_PATH' environment variable for node runtime
   "node_path": false,
+  // build completions on each startup
+  "run_builddocs_at_startup": false,
 
   "expert_mode": false,