diff --git a/docs/quick-start/developers/_setup.md b/docs/quick-start/developers/_setup.md
index 45b91c5e..f71537dc 100644
--- a/docs/quick-start/developers/_setup.md
+++ b/docs/quick-start/developers/_setup.md
@@ -45,7 +45,7 @@ sudo npm i -g aelf-command
 ```
 </TabItem>
 
-<TabItem value="Window" label="Window">
+<TabItem value="Windows" label="Windows">
 ```bash title="Terminal"
 npm i -g aelf-command
 ```
diff --git a/docs/quick-start/developers/vote-contract/index.md b/docs/quick-start/developers/vote-contract/index.md
index fb964607..f9201719 100644
--- a/docs/quick-start/developers/vote-contract/index.md
+++ b/docs/quick-start/developers/vote-contract/index.md
@@ -58,7 +58,7 @@ sudo npm i -g aelf-command
 ```
 </TabItem>
 
-<TabItem value="Window" label="Window">
+<TabItem value="Windows" label="Windows">
 ```bash title="Terminal"
 npm i -g aelf-command
 ```