diff --git a/layout/base/nsDisplayList.cpp b/layout/base/nsDisplayList.cpp
index 73a5124150b4..0f1fb69392f8 100644
--- a/layout/base/nsDisplayList.cpp
+++ b/layout/base/nsDisplayList.cpp
@@ -1508,7 +1508,7 @@ nsDisplayItem::MaxActiveLayers()
     sMaxLayersCached = true;
   }
 
-  return sMaxLayers;
+  return sMaxLayersCached;
 }
 
 bool