diff --git a/README b/README
index 6811e562158b92b01c2ad4dc1f0497b0bc3d8807..0f85bcf4e71a09d923bb430c9072783becdaffb5 100644
--- a/README
+++ b/README
@@ -17,4 +17,4 @@ copy build result CA executable file and TA binary(xxx.sec) to /vendor/bin/
 #the path "/vendor/bin/" may be changed as your opinion, make sure it consistent with the path defined in your TA's source code
 $ /vendor/bin/demo_hello
 
-for more details please refor "iTrustee SDK开发者手册.chm"
+for more details please refor "iTrustee SDK开发者手 册.chm"