diff --git a/services/surfaceflinger/BufferStateLayer.cpp b/services/surfaceflinger/BufferStateLayer.cpp
index 645e883..032ff9a 100644
--- a/services/surfaceflinger/BufferStateLayer.cpp
+++ b/services/surfaceflinger/BufferStateLayer.cpp
@@ -590,6 +590,7 @@
 }
 
 bool BufferStateLayer::setTransparentRegionHint(const Region& transparent) {
+    mDrawingState.sequence++;
     mDrawingState.transparentRegionHint = transparent;
     mDrawingState.modified = true;
     setTransactionFlags(eTransactionNeeded);