diff --git a/audio/6.0/config/api/current.txt b/audio/6.0/config/api/current.txt
index fa1e613746..adab3d2657 100644
--- a/audio/6.0/config/api/current.txt
+++ b/audio/6.0/config/api/current.txt
@@ -214,6 +214,12 @@ package audio.policy.configuration.V6_0 {
     method public void set_default(boolean);
   }
 
+  public enum EngineSuffix {
+    method public String getRawName();
+    enum_constant public static final audio.policy.configuration.V6_0.EngineSuffix _default;
+    enum_constant public static final audio.policy.configuration.V6_0.EngineSuffix configurable;
+  }
+
   public enum GainMode {
     method public String getRawName();
     enum_constant public static final audio.policy.configuration.V6_0.GainMode AUDIO_GAIN_MODE_CHANNELS;
@@ -252,7 +258,9 @@ package audio.policy.configuration.V6_0 {
 
   public class GlobalConfiguration {
     ctor public GlobalConfiguration();
+    method public audio.policy.configuration.V6_0.EngineSuffix getEngine_library();
     method public boolean getSpeaker_drc_enabled();
+    method public void setEngine_library(audio.policy.configuration.V6_0.EngineSuffix);
     method public void setSpeaker_drc_enabled(boolean);
   }
 
diff --git a/audio/6.0/config/audio_policy_configuration.xsd b/audio/6.0/config/audio_policy_configuration.xsd
index b5d978c6a7..3fc60e2118 100644
--- a/audio/6.0/config/audio_policy_configuration.xsd
+++ b/audio/6.0/config/audio_policy_configuration.xsd
@@ -66,6 +66,7 @@
     </xs:element>
     <xs:complexType name="globalConfiguration">
         <xs:attribute name="speaker_drc_enabled" type="xs:boolean" use="required"/>
+        <xs:attribute name="engine_library" type="engineSuffix" use="optional"/>
     </xs:complexType>
     <xs:complexType name="modules">
         <xs:annotation>
@@ -623,4 +624,10 @@
             </xs:element>
         </xs:sequence>
     </xs:complexType>
+    <xs:simpleType name="engineSuffix">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="default"/>
+            <xs:enumeration value="configurable"/>
+        </xs:restriction>
+    </xs:simpleType>
 </xs:schema>