diff --git a/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java b/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
index a102406..1203769 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsStrongAuth.java
@@ -262,7 +262,7 @@
         long nextAlarmTime = strongAuthTime + dpm.getRequiredStrongAuthTimeout(null, userId);
 
         // schedule a new alarm listener for the user
-        mAlarmManager.set(AlarmManager.ELAPSED_REALTIME, nextAlarmTime,
+        mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, nextAlarmTime,
                 STRONG_AUTH_TIMEOUT_ALARM_TAG, alarm, mHandler);
     }
 
@@ -303,7 +303,7 @@
             alarm = new NonStrongBiometricTimeoutAlarmListener(userId);
             mNonStrongBiometricTimeoutAlarmListener.put(userId, alarm);
             // schedule a new alarm listener for the user
-            mAlarmManager.set(AlarmManager.ELAPSED_REALTIME, nextAlarmTime,
+            mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, nextAlarmTime,
                     NON_STRONG_BIOMETRIC_TIMEOUT_ALARM_TAG, alarm, mHandler);
         }
 
@@ -394,7 +394,7 @@
         }
         // schedule a new alarm listener for the user
         if (DEBUG) Slog.d(TAG, "Schedule a new alarm for non-strong biometric idle timeout");
-        mAlarmManager.set(AlarmManager.ELAPSED_REALTIME, nextAlarmTime,
+        mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, nextAlarmTime,
                 NON_STRONG_BIOMETRIC_IDLE_TIMEOUT_ALARM_TAG, alarm, mHandler);
     }
 
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStrongAuthTest.java b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStrongAuthTest.java
index acb20ed..6de7fdd 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStrongAuthTest.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/LockSettingsStrongAuthTest.java
@@ -229,8 +229,8 @@
     }
 
     private void verifyAlarm(long when, String tag, AlarmManager.OnAlarmListener alarm) {
-        verify(mAlarmManager).set(
-                eq(AlarmManager.ELAPSED_REALTIME),
+        verify(mAlarmManager).setExact(
+                eq(AlarmManager.ELAPSED_REALTIME_WAKEUP),
                 eq(when),
                 eq(tag),
                 eq(alarm),