diff --git a/src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml b/src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml
index 43350e6eb..4519c228a 100644
--- a/src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml
+++ b/src/import/chips/p9/procedures/xml/attribute_info/chip_ec_attributes.xml
@@ -1497,23 +1497,6 @@
     </chipEcFeature>
   </attribute>
   <!-- ******************************************************************** -->
-  <attribute>
-    <id>ATTR_CHIP_EC_FEATURE_HW363605</id>
-    <targetType>TARGET_TYPE_PROC_CHIP</targetType>
-    <description>
-      DD1 only: HW363605 Core MB-demote-ack bug
-    </description>
-    <chipEcFeature>
-      <chip>
-        <name>ENUM_ATTR_NAME_NIMBUS</name>
-        <ec>
-          <value>0x20</value>
-          <test>LESS_THAN</test>
-        </ec>
-      </chip>
-    </chipEcFeature>
-  </attribute>
-  <!-- ******************************************************************** -->
   <attribute>
     <id>ATTR_CHIP_EC_FEATURE_HW370692</id>
     <targetType>TARGET_TYPE_PROC_CHIP</targetType>