diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceGenerateChallengeClient.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceGenerateChallengeClient.java
index d7e08e4627777..7a846f5b14a51 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceGenerateChallengeClient.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/FaceGenerateChallengeClient.java
@@ -32,7 +32,6 @@ import com.android.server.biometrics.sensors.GenerateChallengeClient;
  */
 public class FaceGenerateChallengeClient extends GenerateChallengeClient<ISession> {
     private static final String TAG = "FaceGenerateChallengeClient";
-    private static final int CHALLENGE_TIMEOUT_SEC = 600; // 10 minutes
 
     FaceGenerateChallengeClient(@NonNull Context context,
             @NonNull LazyDaemon<ISession> lazyDaemon, @NonNull IBinder token,
@@ -43,7 +42,7 @@ public class FaceGenerateChallengeClient extends GenerateChallengeClient<ISessio
     @Override
     protected void startHalOperation() {
         try {
-            getFreshDaemon().generateChallenge(mSequentialId, CHALLENGE_TIMEOUT_SEC);
+            getFreshDaemon().generateChallenge(mSequentialId);
         } catch (RemoteException e) {
             Slog.e(TAG, "Unable to generateChallenge", e);
         }
diff --git a/services/core/java/com/android/server/biometrics/sensors/face/aidl/TestHal.java b/services/core/java/com/android/server/biometrics/sensors/face/aidl/TestHal.java
index afa5bd22e0813..b4c9b290cd066 100644
--- a/services/core/java/com/android/server/biometrics/sensors/face/aidl/TestHal.java
+++ b/services/core/java/com/android/server/biometrics/sensors/face/aidl/TestHal.java
@@ -45,7 +45,7 @@ public class TestHal extends IFace.Stub {
 
         return new ISession.Stub() {
             @Override
-            public void generateChallenge(int cookie, int timeoutSec) throws RemoteException {
+            public void generateChallenge(int cookie) throws RemoteException {
                 Slog.w(TAG, "generateChallenge, cookie: " + cookie);
                 cb.onChallengeGenerated(0L);
             }