diff --git a/lib/ask/runtime/session.ex b/lib/ask/runtime/session.ex
index e509560c4..69bb9aea1 100644
--- a/lib/ask/runtime/session.ex
+++ b/lib/ask/runtime/session.ex
@@ -94,7 +94,11 @@ defmodule Ask.Runtime.Session do
   end
 
   defp url(respondent_id) do
-    shorten("#{Ask.Endpoint.url}/mobile_survey/#{respondent_id}?token=#{Respondent.token(respondent_id)}")
+    shorten("#{mobile_base_url()}/mobile_survey/#{respondent_id}?token=#{Respondent.token(respondent_id)}")
+  end
+
+  defp mobile_base_url() do
+    System.get_env("MOBILE_WEB_BASE_URL") || Ask.Endpoint.url
   end
 
   defp shorten(url) do
diff --git a/mix.exs b/mix.exs
index d8fbb3fd4..fb039d6f4 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule Ask.Mixfile do
 
   def project do
     [app: :ask,
-     version: "0.10.2",
+     version: "0.10.3",
      elixir: "~> 1.2",
      elixirc_paths: elixirc_paths(Mix.env),
      compilers: [:phoenix, :gettext] ++ Mix.compilers,