diff --git a/ETS-WS/ETS-WS/Web.config b/ETS-WS/ETS-WS/Web.config
index e466075..5365ff3 100644
--- a/ETS-WS/ETS-WS/Web.config
+++ b/ETS-WS/ETS-WS/Web.config
@@ -5,6 +5,7 @@
   -->
 <configuration>
     <system.web>
+        <customErrors mode="Off" />
         <compilation debug="true" targetFramework="4.0">
             <assemblies>
                 <add assembly="System.Web.Extensions.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />