diff --git a/exercises/diffie-hellman/DiffieHellmanTest.cs b/exercises/diffie-hellman/DiffieHellmanTest.cs
index 2f96a8f8fe..3cb9ca503c 100644
--- a/exercises/diffie-hellman/DiffieHellmanTest.cs
+++ b/exercises/diffie-hellman/DiffieHellmanTest.cs
@@ -50,10 +50,10 @@ public void Key_exchange()
         var g = new BigInteger(5);
         var alicePrivateKey = DiffieHellman.PrivateKey(p);
         var bobPrivateKey = DiffieHellman.PrivateKey(p);
-        var alicePublicKey = DiffieHellman.PublicKey(p,G,AlicePrivateKey);
-        var bobPublicKey = DiffieHellman.PublicKey(p,G,BobPrivateKey);
-        var secretA = DiffieHellman.Secret(p,BobPublicKey,AlicePrivateKey);
-        var secretB = DiffieHellman.Secret(p,AlicePublicKey,BobPrivateKey);
+        var alicePublicKey = DiffieHellman.PublicKey(p, g, alicePrivateKey);
+        var bobPublicKey = DiffieHellman.PublicKey(p, g, bobPrivateKey);
+        var secretA = DiffieHellman.Secret(p, bobPublicKey, alicePrivateKey);
+        var secretB = DiffieHellman.Secret(p, alicePublicKey, bobPrivateKey);
         Assert.Equal(secretA, secretB);
     }
 }
\ No newline at end of file
diff --git a/generators/Exercises/Generators/DiffieHellman.cs b/generators/Exercises/Generators/DiffieHellman.cs
index 8e5d52e2af..12b73eebc4 100644
--- a/generators/Exercises/Generators/DiffieHellman.cs
+++ b/generators/Exercises/Generators/DiffieHellman.cs
@@ -3,6 +3,7 @@
 using System.Linq;
 using System.Numerics;
 using System.Text;
+using Exercism.CSharp.Helpers;
 using Exercism.CSharp.Output;
 using Exercism.CSharp.Output.Rendering;
 using Humanizer;
@@ -96,7 +97,7 @@ private static dynamic ConvertKeyExchangeInput(dynamic input, TestMethod testMet
                 case long l:
                     return new BigInteger(l);
                 case string str:
-                    return new UnescapedValue($"{testMethod.TestedClass}.{str.Pascalize()}");
+                    return new UnescapedValue($"{testMethod.TestedClass}.{char.ToUpper(str[0]) + str.Substring(1)}");
                 default:
                     return input;
             }