diff --git a/core/java/com/android/internal/os/ProcessCpuTracker.java b/core/java/com/android/internal/os/ProcessCpuTracker.java
index 5e3c5dfe6bdc2..7a9b6590d56bf 100644
--- a/core/java/com/android/internal/os/ProcessCpuTracker.java
+++ b/core/java/com/android/internal/os/ProcessCpuTracker.java
@@ -753,6 +753,8 @@ public class ProcessCpuTracker {
         proto.write(CpuUsageProto.Load.LOAD15, mLoad15);
         proto.end(currentLoadToken);
 
+        buildWorkingProcs();
+
         proto.write(CpuUsageProto.NOW, now);
         proto.write(CpuUsageProto.LAST_SAMPLE_TIME, mLastSampleTime);
         proto.write(CpuUsageProto.CURRENT_SAMPLE_TIME, mCurrentSampleTime);