diff --git a/webserver-configs/web.config b/webserver-configs/web.config
index e09e94fb5..9ef3d88fd 100644
--- a/webserver-configs/web.config
+++ b/webserver-configs/web.config
@@ -52,4 +52,7 @@
             </rules>
         </rewrite>
     </system.webServer>
+    <system.web>
+        <httpRuntime requestPathInvalidCharacters="&lt;,&gt;,*,%,&amp;,\,?" />
+    </system.web>
 </configuration>