diff --git a/X. Appendices/B.1.2. Property Attributes.md b/X. Appendices/B.1.2. Property Attributes.md
index ed0c811..813913c 100644
--- a/X. Appendices/B.1.2. Property Attributes.md	
+++ b/X. Appendices/B.1.2. Property Attributes.md	
@@ -1,4 +1,4 @@
-### B.1.2. Property属性
+### 附录B.1.2. Property属性
 
 `properties`数组中包含的JSON对象可由以下属性构成：