diff --git a/trusty/keymaster/4.0/android.hardware.keymaster@4.0-service.trusty.xml b/trusty/keymaster/4.0/android.hardware.keymaster@4.0-service.trusty.xml
index aa30707ca..65eb8549a 100644
--- a/trusty/keymaster/4.0/android.hardware.keymaster@4.0-service.trusty.xml
+++ b/trusty/keymaster/4.0/android.hardware.keymaster@4.0-service.trusty.xml
@@ -2,10 +2,6 @@
     <hal format="hidl">
         <name>android.hardware.keymaster</name>
         <transport>hwbinder</transport>
-        <version>4.0</version>
-        <interface>
-        <name>IKeymasterDevice</name>
-            <instance>default</instance>
-        </interface>
+        <fqname>@4.0::IKeymasterDevice/default</fqname>
     </hal>
 </manifest>