diff --git a/Sharp.Augeas.Test/AugeasTests.cs b/Sharp.Augeas.Test/AugeasTests.cs
index be8776f..e1f2d99 100644
--- a/Sharp.Augeas.Test/AugeasTests.cs
+++ b/Sharp.Augeas.Test/AugeasTests.cs
@@ -10,7 +10,7 @@ public class AugeasTests
     private const string EXAMPLE_CONF_1 = "/etc/apache2/sites-available/example.com.conf";
     private const string EXAMPLE_CONF_2 = "/etc/apache2/sites-available/example2.com.conf";
 
-    public static string RandomString(int length)
+    private static string RandomString(int length)
     {
         var random = new Random();
         const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
@@ -18,7 +18,6 @@ public class AugeasTests
             .Select(s => s[random.Next(s.Length)]).ToArray());
     }
 
-
     [SetUp]
     public void Setup()
     {