diff --git a/layout/base/nsDisplayList.cpp b/layout/base/nsDisplayList.cpp
index b01168d18d4f..9464d8724e79 100644
--- a/layout/base/nsDisplayList.cpp
+++ b/layout/base/nsDisplayList.cpp
@@ -2434,7 +2434,7 @@ nsDisplayBackgroundImage::CanOptimizeToImageLayer(LayerManager* aManager,
   // layer pixel boundaries. This should be OK for now.
 
   int32_t appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel();
-  mDestRect =
+  mImageLayerDestRect =
     LayoutDeviceRect::FromAppUnits(state.mDestArea, appUnitsPerDevPixel);
 
   // Ok, we can turn this into a layer if needed.
@@ -2527,7 +2527,7 @@ nsDisplayBackgroundImage::GetLayerState(nsDisplayListBuilder* aBuilder,
     mImage->GetHeight(&imageHeight);
     NS_ASSERTION(imageWidth != 0 && imageHeight != 0, "Invalid image size!");
 
-    const LayerRect destLayerRect = mDestRect * aParameters.Scale();
+    const LayerRect destLayerRect = mImageLayerDestRect * aParameters.Scale();
 
     // Calculate the scaling factor for the frame.
     const gfxSize scale = gfxSize(destLayerRect.width / imageWidth,
@@ -2589,10 +2589,10 @@ nsDisplayBackgroundImage::ConfigureLayer(ImageLayer* aLayer,
   // aParameters.Offset() is always zero.
   MOZ_ASSERT(aParameters.Offset() == LayerIntPoint(0,0));
 
-  const LayoutDevicePoint p = mDestRect.TopLeft();
+  const LayoutDevicePoint p = mImageLayerDestRect.TopLeft();
   Matrix transform = Matrix::Translation(p.x, p.y);
-  transform.PreScale(mDestRect.width / imageWidth,
-                     mDestRect.height / imageHeight);
+  transform.PreScale(mImageLayerDestRect.width / imageWidth,
+                     mImageLayerDestRect.height / imageHeight);
   aLayer->SetBaseTransform(gfx::Matrix4x4::From2D(transform));
 }
 
diff --git a/layout/base/nsDisplayList.h b/layout/base/nsDisplayList.h
index 7478e40adb3a..45e5aa7f6825 100644
--- a/layout/base/nsDisplayList.h
+++ b/layout/base/nsDisplayList.h
@@ -2634,7 +2634,7 @@ protected:
   const nsStyleBackground* mBackgroundStyle;
   nsCOMPtr<imgIContainer> mImage;
   RefPtr<ImageContainer> mImageContainer;
-  LayoutDeviceRect mDestRect;
+  LayoutDeviceRect mImageLayerDestRect;
   /* Bounds of this display item */
   nsRect mBounds;
   uint32_t mLayer;