use Socket.gethostname instead of `hostname`

1 files changed, 1 insertions, 1 deletions

diff --git a/exe/saml-kit b/exe/saml-kit
index 21e1cde..1e4244b 100755
--- a/exe/saml-kit
+++ b/exe/saml-kit
@@ -4,7 +4,7 @@ require 'saml/kit/cli'
 
 samlkitrc = ENV.fetch('SAMLKITRC', File.join(Dir.home, '.samlkitrc'))
 Saml::Kit.configure do |configuration|
-  configuration.entity_id = ENV.fetch('ENTITY_ID', `hostname`.chomp)
+  configuration.entity_id = ENV.fetch('ENTITY_ID', Socket.gethostname.chomp)
   configuration.registry = Saml::Kit::Cli::YamlRegistry.new(samlkitrc)
   configuration.logger.level = Logger::FATAL
 end