diff --git a/gfx/2d/DrawTargetTiled.cpp b/gfx/2d/DrawTargetTiled.cpp
index a2c9eddf91fc..ffb90d8a11fd 100644
--- a/gfx/2d/DrawTargetTiled.cpp
+++ b/gfx/2d/DrawTargetTiled.cpp
@@ -384,6 +384,7 @@ DrawTargetTiled::PopLayer()
   MOZ_ASSERT(mPushedLayers.size());
   const PushedLayer& layer = mPushedLayers.back();
   SetPermitSubpixelAA(layer.mOldPermitSubpixelAA);
+  mPushedLayers.pop_back();
 }
 
 } // namespace gfx