diff --git a/core/java/android/hardware/face/IFaceService.aidl b/core/java/android/hardware/face/IFaceService.aidl
index 9d5073e439577..7080133dc5977 100644
--- a/core/java/android/hardware/face/IFaceService.aidl
+++ b/core/java/android/hardware/face/IFaceService.aidl
@@ -177,5 +177,5 @@ interface IFaceService {
     // Internal operation used to clear face biometric scheduler.
     // Ensures that the scheduler is not stuck.
     @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void scheduleWatchdog();
+    oneway void scheduleWatchdog();
 }
diff --git a/core/java/android/hardware/fingerprint/IFingerprintService.aidl b/core/java/android/hardware/fingerprint/IFingerprintService.aidl
index ec5749ed4f054..fa1507b757fcd 100644
--- a/core/java/android/hardware/fingerprint/IFingerprintService.aidl
+++ b/core/java/android/hardware/fingerprint/IFingerprintService.aidl
@@ -218,5 +218,5 @@ interface IFingerprintService {
     // Internal operation used to clear fingerprint biometric scheduler.
     // Ensures that the scheduler is not stuck.
     @EnforcePermission("USE_BIOMETRIC_INTERNAL")
-    void scheduleWatchdog();
+    oneway void scheduleWatchdog();
 }