diff --git a/tests/YGStyleTest.cpp b/tests/YGStyleTest.cpp
index afeb0d3f75..d730801985 100644
--- a/tests/YGStyleTest.cpp
+++ b/tests/YGStyleTest.cpp
@@ -51,6 +51,18 @@ TEST(YogaTest, copy_style_modified_same) {
   YGNodeFree(node1);
 }
 
+TEST(YogaTest, copy_style_box_sizing) {
+  YGNodeRef node0 = YGNodeNew();
+  YGNodeRef node1 = YGNodeNew();
+  YGNodeStyleSetBoxSizing(node1, YGBoxSizingContentBox);
+
+  YGNodeCopyStyle(node0, node1);
+  ASSERT_EQ(YGBoxSizingContentBox, YGNodeStyleGetBoxSizing(node0));
+
+  YGNodeFree(node0);
+  YGNodeFree(node1);
+}
+
 TEST(YogaTest, initialise_flexShrink_flexGrow) {
   YGNodeRef node0 = YGNodeNew();
   YGNodeStyleSetFlexShrink(node0, 1);
diff --git a/yoga/style/Style.h b/yoga/style/Style.h
index 00af38c692..a25d3a28eb 100644
--- a/yoga/style/Style.h
+++ b/yoga/style/Style.h
@@ -653,6 +653,7 @@ class YG_EXPORT Style {
         alignItems_ == other.alignItems_ && alignSelf_ == other.alignSelf_ &&
         positionType_ == other.positionType_ && flexWrap_ == other.flexWrap_ &&
         overflow_ == other.overflow_ && display_ == other.display_ &&
+        boxSizing_ == other.boxSizing_ &&
         numbersEqual(flex_, pool_, other.flex_, other.pool_) &&
         numbersEqual(flexGrow_, pool_, other.flexGrow_, other.pool_) &&
         numbersEqual(flexShrink_, pool_, other.flexShrink_, other.pool_) &&