diff --git a/AsyncDisplayKit/ASDisplayNode.mm b/AsyncDisplayKit/ASDisplayNode.mm
index fce8cd2198..0b2f6de2b0 100644
--- a/AsyncDisplayKit/ASDisplayNode.mm
+++ b/AsyncDisplayKit/ASDisplayNode.mm
@@ -985,6 +985,7 @@ static inline void filterNodesInLayoutAtIndexesWithIntersectingNodes(
 - (void)applyPendingViewState
 {
   ASDisplayNodeAssertMainThread();
+  ASDN::MutexLocker l(_propertyLock);
   if (self.layerBacked) {
     [_pendingViewState applyToLayer:self.layer];
   } else {