diff --git a/biometrics/fingerprint/aidl/default/Session.cpp b/biometrics/fingerprint/aidl/default/Session.cpp
index c035407..f030f13 100644
--- a/biometrics/fingerprint/aidl/default/Session.cpp
+++ b/biometrics/fingerprint/aidl/default/Session.cpp
@@ -219,11 +219,11 @@
     return ndk::ScopedAStatus::ok();
 }
 
-ndk::ScopedAStatus Session::close(int32_t cookie) {
+ndk::ScopedAStatus Session::close(int32_t /*cookie*/) {
     LOG(INFO) << "close";
     CHECK(mCurrentState == SessionState::IDLING) << "Can't close a non-idling session. Crashing.";
     mCurrentState = SessionState::CLOSED;
-    mCb->onStateChanged(cookie, mCurrentState);
+    mCb->onSessionClosed();
     return ndk::ScopedAStatus::ok();
 }