diff --git a/yoga/YGNode.cpp b/yoga/YGNode.cpp
index 7a71058a..37b63042 100644
--- a/yoga/YGNode.cpp
+++ b/yoga/YGNode.cpp
@@ -423,10 +423,10 @@ YGNode::YGNode(
     YGBaselineFunc baseline,
     YGDirtiedFunc dirtied,
     YGStyle style,
-    YGLayout layout,
+    const YGLayout& layout,
     uint32_t lineIndex,
     YGNodeRef parent,
-    YGVector children,
+    const YGVector& children,
     YGNodeRef nextChild,
     YGConfigRef config,
     bool isDirty,
diff --git a/yoga/YGNode.h b/yoga/YGNode.h
index 081bc235..c9c5599c 100644
--- a/yoga/YGNode.h
+++ b/yoga/YGNode.h
@@ -47,10 +47,10 @@ struct YGNode {
       YGBaselineFunc baseline,
       YGDirtiedFunc dirtied,
       YGStyle style,
-      YGLayout layout,
+      const YGLayout& layout,
       uint32_t lineIndex,
       YGNodeRef parent,
-      YGVector children,
+      const YGVector& children,
       YGNodeRef nextChild,
       YGConfigRef config,
       bool isDirty,