diff --git a/services/audiopolicy/engineconfigurable/config/example/automotive/audio_policy_engine_product_strategies.xml b/services/audiopolicy/engineconfigurable/config/example/automotive/audio_policy_engine_product_strategies.xml
index 0ee83a2..337de71 100644
--- a/services/audiopolicy/engineconfigurable/config/example/automotive/audio_policy_engine_product_strategies.xml
+++ b/services/audiopolicy/engineconfigurable/config/example/automotive/audio_policy_engine_product_strategies.xml
@@ -84,7 +84,7 @@
         </AttributesGroup>
     </ProductStrategy>
     <ProductStrategy name="voice_command">
-        <AttributesGroup volumeGroup="speech">
+        <AttributesGroup volumeGroup="speech" streamType="AUDIO_STREAM_ASSISTANT">
             <Attributes>
                 <ContentType value="AUDIO_CONTENT_TYPE_SPEECH"/>
                 <Usage value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE"/>
diff --git a/services/audiopolicy/engineconfigurable/config/example/caremu/audio_policy_engine_product_strategies.xml b/services/audiopolicy/engineconfigurable/config/example/caremu/audio_policy_engine_product_strategies.xml
index adcbd83..3634313 100644
--- a/services/audiopolicy/engineconfigurable/config/example/caremu/audio_policy_engine_product_strategies.xml
+++ b/services/audiopolicy/engineconfigurable/config/example/caremu/audio_policy_engine_product_strategies.xml
@@ -84,7 +84,7 @@
         </AttributesGroup>
     </ProductStrategy>
     <ProductStrategy name="voice_command">
-        <AttributesGroup volumeGroup="speech">
+        <AttributesGroup volumeGroup="speech" streamType="AUDIO_STREAM_ASSISTANT">
             <Attributes>
                 <ContentType value="AUDIO_CONTENT_TYPE_SPEECH"/>
                 <Usage value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE"/>
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/volumes.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/volumes.pfw
index 7db4537..cf1857e 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/volumes.pfw
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/volumes.pfw
@@ -11,6 +11,7 @@
 			/Policy/policy/streams/enforced_audible/applicable_volume_profile/volume_profile = enforced_audible
 			/Policy/policy/streams/tts/applicable_volume_profile/volume_profile = tts
 			/Policy/policy/streams/accessibility/applicable_volume_profile/volume_profile = accessibility
+			/Policy/policy/streams/assistant/applicable_volume_profile/volume_profile = assistant
 			/Policy/policy/streams/rerouting/applicable_volume_profile/volume_profile = rerouting
 			/Policy/policy/streams/patch/applicable_volume_profile/volume_profile = patch
 
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem-no-strategy.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem-no-strategy.xml
index a4e7537..ed349c8 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem-no-strategy.xml
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem-no-strategy.xml
@@ -28,6 +28,8 @@
                              Description="Transmitted Through Speaker. Plays over speaker only, silent on other devices"/>
             <Component Name="accessibility" Type="Stream" Mapping="Name:AUDIO_STREAM_ACCESSIBILITY"
                              Description="For accessibility talk back prompts"/>
+            <Component Name="assistant" Type="Stream" Mapping="Name:AUDIO_STREAM_ASSISTANT"
+                             Description="used by a virtual assistant like Google Assistant, Bixby, etc."/>
             <Component Name="rerouting" Type="Stream" Mapping="Name:AUDIO_STREAM_REROUTING"
                              Description="For dynamic policy output mixes"/>
             <Component Name="patch" Type="Stream" Mapping="Name:AUDIO_STREAM_PATCH"
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem.xml
index 585ce87..7bbb57a 100644
--- a/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem.xml
+++ b/services/audiopolicy/engineconfigurable/parameter-framework/examples/common/Structure/PolicySubsystem.xml
@@ -44,6 +44,8 @@
                              Description="Transmitted Through Speaker. Plays over speaker only, silent on other devices"/>
             <Component Name="accessibility" Type="Stream" Mapping="Name:AUDIO_STREAM_ACCESSIBILITY"
                              Description="For accessibility talk back prompts"/>
+            <Component Name="assistant" Type="Stream" Mapping="Name:AUDIO_STREAM_ASSISTANT"
+                             Description="used by a virtual assistant like Google Assistant, Bixby, etc."/>
             <Component Name="rerouting" Type="Stream" Mapping="Name:AUDIO_STREAM_REROUTING"
                              Description="For dynamic policy output mixes"/>
             <Component Name="patch" Type="Stream" Mapping="Name:AUDIO_STREAM_PATCH"
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
index 7e5c5e3..6d42fcf 100644
--- a/services/audiopolicy/engineconfigurable/src/Engine.cpp
+++ b/services/audiopolicy/engineconfigurable/src/Engine.cpp
@@ -129,7 +129,7 @@
     Element<Key> *element = getFromCollection<Key>(key);
     if (element == NULL) {
         ALOGE("%s: Element not found within collection", __FUNCTION__);
-        return BAD_VALUE;
+        return false;
     }
     return element->template set<Property>(property) == NO_ERROR;
 }