diff --git a/zh-cn/application-dev/database/database-distributedobject-overview.md b/zh-cn/application-dev/database/database-distributedobject-overview.md
index a5d462fd694978174417eee32bfa837104b6485c..76aefdae64b3534c08c04a17cdeb23a628f1a97c 100644
--- a/zh-cn/application-dev/database/database-distributedobject-overview.md
+++ b/zh-cn/application-dev/database/database-distributedobject-overview.md
@@ -27,7 +27,7 @@
 
 **图1** 分布式数据对象运行机制
 
-![how-distributedobject-works](figures/how-distributedobject-works.PNG)
+![how-distributedobject-works](figures/how-distributedobject-works.png)