diff --git a/wireless_charger/compatibility_matrix.xml b/wireless_charger/compatibility_matrix.xml
index 086fd8c..d0adcde 100644
--- a/wireless_charger/compatibility_matrix.xml
+++ b/wireless_charger/compatibility_matrix.xml
@@ -1,5 +1,5 @@
-<compatibility-matrix version="1.0" type="framework">
-    <hal format="aidl">
+<compatibility-matrix version="1.0" type="framework" level="7">
+    <hal format="aidl" optional="true">
         <name>vendor.google.wireless_charger</name>
         <version>1</version>
         <interface>