diff --git a/components/tour/demo/mask.md b/components/tour/demo/mask.md
index 1252fd1faf..c7c8f3c3f3 100644
--- a/components/tour/demo/mask.md
+++ b/components/tour/demo/mask.md
@@ -4,4 +4,4 @@
 
 ## en-US
 
-custom mask style.
+Custom mask style.
diff --git a/components/tour/index.en-US.md b/components/tour/index.en-US.md
index 9830781c3f..d3a30d1d02 100644
--- a/components/tour/index.en-US.md
+++ b/components/tour/index.en-US.md
@@ -20,8 +20,8 @@ Use when you want to guide users through a product.
 <code src="./demo/basic.tsx">Basic</code>
 <code src="./demo/non-modal.tsx">Non-modal</code>
 <code src="./demo/placement.tsx">Placement</code>
-<code src="./demo/mask.tsx">custom mask style</code>
-<code src="./demo/indicator.tsx">custom indicator</code>
+<code src="./demo/mask.tsx">Custom mask style</code>
+<code src="./demo/indicator.tsx">Custom indicator</code>
 <code src="./demo/render-panel.tsx" debug>\_InternalPanelDoNotUseOrYouWillBeFired</code>
 
 ## API