diff --git a/packages/hot/README.md b/packages/hot/README.md
index 242fd99c..da498f88 100644
--- a/packages/hot/README.md
+++ b/packages/hot/README.md
@@ -99,7 +99,7 @@ void main() async {
   // Remove 'X-FRAME-OPTIONS'
   http.defaultResponseHeaders.remove('X-FRAME-OPTIONS', 'SAMEORIGIN');
 
-  // Add 'X-XSRF_TOKEN'
+  // Add 'X-XSRF-TOKEN'
   http.defaultResponseHeaders.add('X-XSRF-TOKEN',
       'a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e');
 }
diff --git a/packages/production/README.md b/packages/production/README.md
index 097dfca6..7b7de1ee 100644
--- a/packages/production/README.md
+++ b/packages/production/README.md
@@ -75,7 +75,7 @@ void main(List<String> args) {
   // Remove 'X-FRAME-OPTIONS'
   var removeHeader = {'X-FRAME-OPTIONS': 'SAMEORIGIN'};
 
-  // Add 'X-XSRF_TOKEN'
+  // Add 'X-XSRF-TOKEN'
   var customHeader = {
     'X-XSRF-TOKEN':
         'a591a6d40bf420404a011733cfb7b190d62c65bf0bcda32b57b277d9ad9f146e'