diff --git a/layout/painting/nsDisplayList.cpp b/layout/painting/nsDisplayList.cpp
index 4691f1c3f33d..da806037d18a 100644
--- a/layout/painting/nsDisplayList.cpp
+++ b/layout/painting/nsDisplayList.cpp
@@ -790,6 +790,7 @@ void nsDisplayListBuilder::AddEffectUpdate(dom::RemoteBrowser* aBrowser,
 void nsDisplayListBuilder::EndFrame() {
   NS_ASSERTION(!mInInvalidSubtree,
                "Someone forgot to cleanup mInInvalidSubtree!");
+  mCurrentContainerASR = nullptr;
   mActiveScrolledRoots.Clear();
   mEffectsUpdates.Clear();
   FreeClipChains();