diff --git a/README.md b/README.md
index 154d92a..72cc746 100644
--- a/README.md
+++ b/README.md
@@ -375,7 +375,7 @@ class AuthenticateUser
 
   def call
     if user = User.authenticate(context.email, context.password)
-      context.user. = user
+      context.user = user
       context.token = user.secret_token
     else
       context.fail!(message: "authenticate_user.failure")