diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 92353ae..d1ef57d 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -657,6 +657,7 @@
     uint32_t mTextureName;      // from GLES
     bool mPremultipliedAlpha;
     String8 mName;
+    String8 mTransactionName; // A cached version of "TX - " + mName for systraces
     PixelFormat mFormat;
 
     // these are protected by an external lock