diff --git a/README.md b/README.md
index 3933b76..73f81a2 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ def extract_value(data)
 end
 ```
 
-When `data` is `{ :results => [] }`, the following error messsage is shown:
+When `data` is `{ :results => [] }`, the following error message is shown:
 
 ```
 $ ruby test.rb