diff --git a/src/cpu_map/x86_features.xml b/src/cpu_map/x86_features.xml
index fc11af0717..9caf0c65ed 100644
--- a/src/cpu_map/x86_features.xml
+++ b/src/cpu_map/x86_features.xml
@@ -473,6 +473,9 @@
   <feature name='sgx-kss'>
     <cpuid eax_in='0x12' ecx_in='0x01' eax='0x00000080'/>
   </feature>
+  <feature name='sgx-aex-notify'>
+    <cpuid eax_in='0x12' ecx_in='0x01' eax='0x00000400'/>
+  </feature>
 
   <!-- cpuid level 0x00000014 ecx 0x0 features -->
   <feature name='intel-pt-lip'>