diff --git a/wireless_charger/compatibility_matrix.xml b/wireless_charger/compatibility_matrix.xml
index 5a8fc34..85ee65a 100644
--- a/wireless_charger/compatibility_matrix.xml
+++ b/wireless_charger/compatibility_matrix.xml
@@ -1,7 +1,7 @@
 <compatibility-matrix version="1.0" type="framework">
     <hal format="aidl" optional="true">
         <name>vendor.google.wireless_charger</name>
-        <version>2</version>
+        <version>1</version>
         <interface>
             <name>IWirelessCharger</name>
             <instance>default</instance>