diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index a32cd4c2b374c..df930ad445e6b 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -3578,6 +3578,7 @@ public final class ActivityManagerService extends ActivityManagerNative implemen
             
             if (mFactoryTest != SystemServer.FACTORY_TEST_LOW_LEVEL) {
                 // Tell anyone interested that we are done booting!
+                SystemProperties.set("sys.boot_completed", "1");
                 broadcastIntentLocked(null, null,
                         new Intent(Intent.ACTION_BOOT_COMPLETED, null),
                         null, null, 0, null, null,