diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 1d6f016..6cff608 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -270,6 +270,8 @@
     // being treated as native display brightness
     static bool enableSdrDimming;
 
+    static bool enableLatchUnsignaled;
+
     // must be called before clients can connect
     void init() ANDROID_API;