diff --git a/README.md b/README.md
index 09f76e2..d4d1734 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ $ gem install saxlsx
 ## Usage
 
 ```ruby
-Saxslsx::Workbook.open filename do |w|
+Saxlsx::Workbook.open filename do |w|
   w.sheets.each do |s|
     s.rows.each do |r|
       puts r.inspect