diff --git a/lib/apress/gems/cli.rb b/lib/apress/gems/cli.rb
index 61f0335..3ab9b41 100644
--- a/lib/apress/gems/cli.rb
+++ b/lib/apress/gems/cli.rb
@@ -18,7 +18,7 @@ def changelog
         Apress::ChangeLogger.new.log_changes
 
         spawn 'git add CHANGELOG.md'
-        spawn "git commit -m 'Update CHANGELOG.md"
+        spawn "git commit -m 'Update CHANGELOG.md'"
 
         puts 'CHANGELOG.md generated'
       end