diff --git a/src/extensions/screensaver.xml b/src/extensions/screensaver.xml
index 18b5897..f6cff9c 100644
--- a/src/extensions/screensaver.xml
+++ b/src/extensions/screensaver.xml
@@ -29,7 +29,7 @@ authorization from the authors.
 Screen Saver Extension to the X Protocol
 Draft Standard Version 1.0
 -->
-<xcb header="screensaver" extension-xname="SCREENSAVER" extension-name="ScreenSaver">
+<xcb header="screensaver" extension-xname="MIT-SCREEN-SAVER" extension-name="ScreenSaver">
   <!-- Types -->
 
   <enum name="KIND">