diff --git a/src/ReferenceCop/Configuration/XmlConfigurationLoader.cs b/src/ReferenceCop/Configuration/XmlConfigurationLoader.cs
index facc682..1ab83fd 100644
--- a/src/ReferenceCop/Configuration/XmlConfigurationLoader.cs
+++ b/src/ReferenceCop/Configuration/XmlConfigurationLoader.cs
@@ -51,11 +51,11 @@ private static ReferenceCopConfig ReadFromFile(string configFilePath)
             }
         }
 
+        private static readonly XmlSerializer Serializer = new XmlSerializer(typeof(ReferenceCopConfig));
+
         private static ReferenceCopConfig ParseConfigFrom(Stream stream)
         {
-            var xmlSerializer = new XmlSerializer(typeof(ReferenceCopConfig));
-
-            return (ReferenceCopConfig)xmlSerializer.Deserialize(stream);
+            return (ReferenceCopConfig)Serializer.Deserialize(stream);
         }
     }
 }