diff --git a/config.xml b/config.xml
index 0b35bc461..0fb53b7b8 100644
--- a/config.xml
+++ b/config.xml
@@ -27,7 +27,7 @@
     <preference name="UIWebViewBounce" value="false" />
     <preference name="DisallowOverscroll" value="true" />
     <preference name="prerendered-icon" value="true" />
-    <preference name="AppendUserAgent" value="MoodleMobile" />
+    <preference name="AppendUserAgent" value="MoodleMobile 4.0.0-dev (40000)" />
     <preference name="BackupWebStorage" value="none" />
     <preference name="ScrollEnabled" value="false" />
     <preference name="KeyboardDisplayRequiresUserAction" value="false" />