diff --git a/udfps/UdfpsHandler.cpp b/udfps/UdfpsHandler.cpp
index 500d94b..a958855 100644
--- a/udfps/UdfpsHandler.cpp
+++ b/udfps/UdfpsHandler.cpp
@@ -104,6 +104,14 @@ class XiaomiMsmnileUdfpsHandler : public UdfpsHandler {
     void onFingerUp() {
         // nothing
     }
+
+    void onAcquired(int32_t /*result*/, int32_t /*vendorCode*/) {
+        // nothing
+    }
+
+    void cancel() {
+        // nothing
+    }
   private:
     fingerprint_device_t *mDevice;
 };