diff --git a/compatibility_matrices/compatibility_matrix.6.xml b/compatibility_matrices/compatibility_matrix.6.xml
index 40ae655..1b812ed 100644
--- a/compatibility_matrices/compatibility_matrix.6.xml
+++ b/compatibility_matrices/compatibility_matrix.6.xml
@@ -454,6 +454,7 @@
         <interface>
             <name>ISap</name>
             <instance>slot1</instance>
+            <instance>slot2</instance>
         </interface>
     </hal>
     <hal format="hidl" optional="true">