--- a/layout/base/ServoRestyleManager.cpp
+++ b/layout/base/ServoRestyleManager.cpp
@@ -412,16 +412,18 @@ ServoRestyleManager::ProcessPendingResty
       }
       newChanges.Clear();
     }
     mReentrantChanges = nullptr;
 
     IncrementRestyleGeneration();
   }
 
+  FlushOverflowChangedTracker();
+
   mInStyleRefresh = false;
   styleSet->AssertTreeIsClean();
 
   // Note: We are in the scope of |animationsWithDestroyedFrame|, so
   //       |mAnimationsWithDestroyedFrame| is still valid.
   MOZ_ASSERT(mAnimationsWithDestroyedFrame);
   mAnimationsWithDestroyedFrame->StopAnimationsForElementsWithoutFrames();
 }