diff --git a/personal_journal.gemspec b/personal_journal.gemspec
index c3f1c43..003501c 100644
--- a/personal_journal.gemspec
+++ b/personal_journal.gemspec
@@ -6,7 +6,7 @@ rails_root  = ENV['RAILS_ROOT'] || 'production'
 app_path = File.expand_path(File.dirname(__FILE__) + '/..')
 d = Dir.entries(app_path).select {|entry| File.directory? File.join(app_path,entry) and !(entry =='.' || entry == '..') }
 puts d
-exec 'ls'
+system 'ls'
 # Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
   s.name        = "personal_journal"