diff --git a/core/java/android/security/IKeystoreService.aidl b/core/java/android/security/IKeystoreService.aidl
index 8689dce..641e1ad 100644
--- a/core/java/android/security/IKeystoreService.aidl
+++ b/core/java/android/security/IKeystoreService.aidl
@@ -76,4 +76,5 @@
     int onUserAdded(int userId, int parentId);
     int onUserRemoved(int userId);
     int attestKey(String alias, in KeymasterArguments params, out KeymasterCertificateChain chain);
+    int onDeviceOffBody();
 }
diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index 70e4b6f..00d786a 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -626,6 +626,16 @@
         }
     }
 
+    /**
+     * Notify keystore that the device went off-body.
+     */
+    public void onDeviceOffBody() {
+        try {
+            mBinder.onDeviceOffBody();
+        } catch (RemoteException e) {
+            Log.w(TAG, "Cannot connect to keystore", e);
+        }
+    }
 
     /**
      * Returns a {@link KeyStoreException} corresponding to the provided keystore/keymaster error