diff --git a/core/proto/android/server/windowmanagertransitiontrace.proto b/core/proto/android/server/windowmanagertransitiontrace.proto
index 25985eb..c3cbc91 100644
--- a/core/proto/android/server/windowmanagertransitiontrace.proto
+++ b/core/proto/android/server/windowmanagertransitiontrace.proto
@@ -55,12 +55,14 @@
   optional int64 finish_time_ns = 6; // consider aborted if not provided
   required int32 type = 7;
   repeated Target targets = 8;
+  optional int32 flags = 9;
 }
 
 message Target {
   required int32 mode = 1;
   required int32 layer_id = 2;
   optional int32 window_id = 3;  // Not dumped in always on tracing
+  optional int32 flags = 4;
 }
 
 message TransitionState {
diff --git a/services/core/java/com/android/server/wm/TransitionTracer.java b/services/core/java/com/android/server/wm/TransitionTracer.java
index a4c931c..6597d4c 100644
--- a/services/core/java/com/android/server/wm/TransitionTracer.java
+++ b/services/core/java/com/android/server/wm/TransitionTracer.java
@@ -154,6 +154,7 @@
         }
 
         outputStream.write(com.android.server.wm.shell.Transition.TYPE, transition.mType);
+        outputStream.write(com.android.server.wm.shell.Transition.FLAGS, transition.getFlags());
 
         for (int i = 0; i < targets.size(); ++i) {
             final long changeToken = outputStream
@@ -162,6 +163,7 @@
             final Transition.ChangeInfo target = targets.get(i);
 
             final int mode = target.getTransitMode(target.mContainer);
+            final int flags = target.getChangeFlags(target.mContainer);
             final int layerId;
             if (target.mContainer.mSurfaceControl.isValid()) {
                 layerId = target.mContainer.mSurfaceControl.getLayerId();
@@ -170,6 +172,7 @@
             }
 
             outputStream.write(com.android.server.wm.shell.Target.MODE, mode);
+            outputStream.write(com.android.server.wm.shell.Target.FLAGS, flags);
             outputStream.write(com.android.server.wm.shell.Target.LAYER_ID, layerId);
 
             if (mActiveTracingEnabled) {