diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9508e7d..b023eca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 0.1.22
 
 * added **eypconf_location**
+* added **eypconf_sg** fact (servergroup shortname)
 
 ## 0.1.21
 
diff --git a/lib/facter/eypconf_sg.rb b/lib/facter/eypconf_sg.rb
new file mode 100644
index 0000000..14776bb
--- /dev/null
+++ b/lib/facter/eypconf_sg.rb
@@ -0,0 +1,25 @@
+if File.exists?('/opt/eypconf/id/sg.sh') then
+  sg = Facter::Util::Resolution.exec('bash /opt/eypconf/id/sg.sh').to_s
+else
+  sg = Facter::Util::Resolution.exec('bash -c \'if [ -f /opt/eypconf/id/sg ]; then cat /opt/eypconf/id/server; fi\'')
+end
+
+unless sg.nil? or sg.empty?
+  Facter.add('eypconf_sg') do
+      setcode do
+        sg
+      end
+  end
+
+  Facter.add('eypconf_sg_uppercase') do
+      setcode do
+        sg.upcase
+      end
+  end
+
+  Facter.add('eypconf_sg_lowercase') do
+      setcode do
+        sg.downcase
+      end
+  end
+end