diff --git a/device_framework_matrix_product.xml b/device_framework_matrix_product.xml
index 5592ae9e..cf8f375c 100644
--- a/device_framework_matrix_product.xml
+++ b/device_framework_matrix_product.xml
@@ -156,6 +156,7 @@
     </hal>
     <hal format="aidl" optional="true">
         <name>com.google.input.algos.gril</name>
+        <version>2</version>
         <interface>
             <name>IGrilAntennaTuningService</name>
             <instance>default</instance>
diff --git a/manifest.xml b/manifest.xml
index 257c105d..28d38c6b 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -41,6 +41,7 @@
     </hal>
     <hal format="aidl">
         <name>com.google.input.algos.gril</name>
+        <version>2</version>
         <interface>
             <name>IGrilAntennaTuningService</name>
             <instance>default</instance>