diff --git a/lib/vmfloaty/utils.rb b/lib/vmfloaty/utils.rb
index 1759396..12b5047 100644
--- a/lib/vmfloaty/utils.rb
+++ b/lib/vmfloaty/utils.rb
@@ -165,7 +165,7 @@ class Utils
   end
 
   def self.get_service_object(type = '')
-    nspooler_strings = ['ns', 'nspooler', 'nonstandard', 'nonstandard_pooler']
+    nspooler_strings = %w[ns nspooler nonstandard nonstandard_pooler]
     if nspooler_strings.include? type.downcase
       NonstandardPooler
     else
diff --git a/spec/vmfloaty/pooler_spec.rb b/spec/vmfloaty/pooler_spec.rb
index 43524d4..1f6e8fb 100644
--- a/spec/vmfloaty/pooler_spec.rb
+++ b/spec/vmfloaty/pooler_spec.rb
@@ -81,7 +81,7 @@ describe Pooler do
       expect(vm_req).to be_an_instance_of Hash
       expect(vm_req['ok']).to equal true
       expect(vm_req['debian-7-i386']['hostname']).to be_an_instance_of Array
-      expect(vm_req['debian-7-i386']['hostname']).to eq ['sc0o4xqtodlul5w', '4m4dkhqiufnjmxy']
+      expect(vm_req['debian-7-i386']['hostname']).to eq %w[sc0o4xqtodlul5w 4m4dkhqiufnjmxy]
       expect(vm_req['centos-7-x86_64']['hostname']).to eq 'zb91y9qbrbf6d3q'
     end
   end