diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 4a60d5c..4947210 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -3858,6 +3858,15 @@
             flags |= eTraversalNeeded | eTransformHintUpdateNeeded;
         }
     }
+    if (what & layer_state_t::eTrustedOverlayChanged) {
+        if (privileged) {
+            if (layer->setTrustedOverlay(s.isTrustedOverlay)) {
+                flags |= eTraversalNeeded;
+            }
+        } else {
+            ALOGE("Attempt to set trusted overlay without permission ACCESS_SURFACE_FLINGER");
+        }
+    }
     // This has to happen after we reparent children because when we reparent to null we remove
     // child layers from current state and remove its relative z. If the children are reparented in
     // the same transaction, then we have to make sure we reparent the children first so we do not