diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index fb29d7f3..71d3d6ea 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -65,10 +65,7 @@ private
   end
 
   def get_invite_link
-    unsafe_uri = request.env["REQUEST_URI"] || 'https://metamaps.cc'
-    valid_url = /^https?:\/\/([\w\.-]+)(:\d{1,5})?\/?$/
-    safe_uri = (unsafe_uri.match(valid_url)) ? unsafe_uri : '//metamaps.cc/'
-    @invite_link = "#{safe_uri}join" + (current_user ? "?code=#{current_user.code}" : "")
+    @invite_link = "#{request.base_url}/join" + (current_user ? "?code=#{current_user.code}" : "")
   end
 
   def allow_embedding