diff --git a/keymaster/4.1/default/Android.bp b/keymaster/4.1/default/Android.bp
index 27297b9..3442b18 100644
--- a/keymaster/4.1/default/Android.bp
+++ b/keymaster/4.1/default/Android.bp
@@ -20,6 +20,7 @@
     relative_install_path: "hw",
     vendor: true,
     init_rc: ["android.hardware.keymaster@4.1-service.rc"],
+    vintf_fragments: ["android.hardware.keymaster@4.1-service.xml"],
     srcs: ["service.cpp"],
 
     shared_libs: [
diff --git a/keymaster/4.1/default/android.hardware.keymaster@4.1-service.xml b/keymaster/4.1/default/android.hardware.keymaster@4.1-service.xml
new file mode 100644
index 0000000..9ba05c5
--- /dev/null
+++ b/keymaster/4.1/default/android.hardware.keymaster@4.1-service.xml
@@ -0,0 +1,11 @@
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.keymaster</name>
+        <transport>hwbinder</transport>
+        <version>4.1</version>
+        <interface>
+            <name>IKeymasterDevice</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+</manifest>