diff --git a/audio/4.0/config/audio_policy_configuration.xsd b/audio/4.0/config/audio_policy_configuration.xsd
index 14e4fd6..ee17fc9 100644
--- a/audio/4.0/config/audio_policy_configuration.xsd
+++ b/audio/4.0/config/audio_policy_configuration.xsd
@@ -525,6 +525,7 @@
             <xs:enumeration value="DEVICE_CATEGORY_SPEAKER"/>
             <xs:enumeration value="DEVICE_CATEGORY_EARPIECE"/>
             <xs:enumeration value="DEVICE_CATEGORY_EXT_MEDIA"/>
+            <xs:enumeration value="DEVICE_CATEGORY_HEARING_AID"/>
         </xs:restriction>
     </xs:simpleType>
     <xs:complexType name="volume">