diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index 09541f66633d3..8a44d0032f6a6 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -1190,6 +1190,7 @@ class ActivityStack<T extends StackWindowController> extends ConfigurationContai
      * process of going to sleep (checkReadyForSleep will be called when that process finishes).
      */
     boolean goToSleepIfPossible(boolean shuttingDown) {
+        final ActivityRecord topActivity = topActivity();
         boolean shouldSleep = true;
 
         if (mResumedActivity != null) {
@@ -1214,10 +1215,10 @@ class ActivityStack<T extends StackWindowController> extends ConfigurationContai
             // Still waiting for something to pause; can't sleep yet.
             if (DEBUG_PAUSE) Slog.v(TAG_PAUSE, "Sleep still waiting to pause " + mPausingActivity);
             shouldSleep = false;
-        } else if (topActivity() != null && topActivity().state == ActivityState.PAUSED) {
+        } else if (topActivity != null && topActivity.state == ActivityState.PAUSED) {
             // Our top activity is currently paused, we need to ensure we move it to the stopped
             // state.
-            stopActivityLocked(mLastPausedActivity);
+            stopActivityLocked(topActivity);
             shouldSleep = false;
         }