diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 7f7d8da..43cc50f 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -380,6 +380,7 @@
 
         renderengine::ShadowSettings globalShadowSettings;
 
+        void traverse(const LayerVector::Visitor& visitor) const;
         void traverseInZOrder(const LayerVector::Visitor& visitor) const;
         void traverseInReverseZOrder(const LayerVector::Visitor& visitor) const;
     };