diff --git a/source/_posts/read-llvm-code-1/index.md b/source/_posts/read-llvm-code-1/index.md
index 35f1901..cf546fa 100644
--- a/source/_posts/read-llvm-code-1/index.md
+++ b/source/_posts/read-llvm-code-1/index.md
@@ -177,7 +177,7 @@ done:
 ```
 
 ```mermaid
-flowchart LR
+flowchart TB
 
 subgraph "Function"
 	fname("Name: @add1")