diff --git a/public/docs/ts/latest/tutorial/toh-pt6.jade b/public/docs/ts/latest/tutorial/toh-pt6.jade
index 04cebfc0b5..0015bcde6f 100644
--- a/public/docs/ts/latest/tutorial/toh-pt6.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt6.jade
@@ -106,9 +106,9 @@ block http-providers
 
 .l-main-section
 :marked
-  ## Simulating the web API
+  ## Simulating the Web API
   
-  ## 模拟web API
+  ## 模拟Web API
 
   We recommend registering application-wide services in the root 
   `!{_AppModuleVsAppComp}` *providers*.  <span if-docs="dart">Here we're