diff --git a/keymaster/4.1/Android.bp b/keymaster/4.1/Android.bp
index eaa7e41..3b505d8 100644
--- a/keymaster/4.1/Android.bp
+++ b/keymaster/4.1/Android.bp
@@ -12,6 +12,7 @@
         "IOperation.hal",
     ],
     interfaces: [
+        "android.hardware.keymaster@3.0",
         "android.hardware.keymaster@4.0",
         "android.hidl.base@1.0",
     ],