diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index ab39152fc10f5..5cd5c2604e28f 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -8717,9 +8717,14 @@
     <declare-styleable name="VoiceInteractionService">
         <!-- The service that hosts active voice interaction sessions.  This is required. -->
         <attr name="sessionService" format="string" />
-        <!-- The service that provides voice recognition.  This is required.  When the user
-             selects this voice interaction service, they will also be implicitly selecting
-             the component here for their recognition service. -->
+        <!-- The service that provides voice recognition. This is required. On Android 11 and
+             earlier, this must be a valid RecognitionService.
+             <p>
+             From Android 12 onward, this attribute does nothing. However, we still require it to
+             be set to something to reduce the risk that an app with an unspecified value gets
+             pushed to older platform versions, where it will cause a boot loop. To make sure
+             developers don't miss it, the system will reset the current assistant if this isn't
+             specified.-->
         <attr name="recognitionService" format="string" />
         <attr name="settingsActivity" />
         <!-- Flag indicating whether this voice interaction service is capable of handling the