diff --git a/lib/vegas/runner.rb b/lib/vegas/runner.rb
index 71c002c..4e4659f 100644
--- a/lib/vegas/runner.rb
+++ b/lib/vegas/runner.rb
@@ -79,7 +79,7 @@ def initialize(app, app_name, set_options = {}, runtime_args = ARGV, &block)
 
     def app_dir
       if !options[:app_dir] && !ROOT_DIR
-        raise ArgumentError.new("nor --app-dir neither EVN['HOME'] defined")
+        raise ArgumentError.new("nor --app-dir neither ENV['HOME'] defined")
       end
       options[:app_dir] || File.join(ROOT_DIR, filesystem_friendly_app_name)
     end