diff --git a/Yubico.YubiKey/src/Yubico/YubiKey/Piv/PivSession.ManagementKey.cs b/Yubico.YubiKey/src/Yubico/YubiKey/Piv/PivSession.ManagementKey.cs
index b2004f26..05745d1d 100644
--- a/Yubico.YubiKey/src/Yubico/YubiKey/Piv/PivSession.ManagementKey.cs
+++ b/Yubico.YubiKey/src/Yubico/YubiKey/Piv/PivSession.ManagementKey.cs
@@ -762,7 +762,7 @@ public void ChangeManagementKey(PivTouchPolicy touchPolicy = PivTouchPolicy.Defa
         public void ChangeManagementKey(PivTouchPolicy touchPolicy, PivAlgorithm newKeyAlgorithm)
         {
             _log.LogInformation("Change the management key, touch policy = {TouchPolicy}, algorithm = {PivAlgorithm}.",
-                touchPolicy, newKeyAlgorithm);
+                touchPolicy.ToString(), newKeyAlgorithm.ToString());
 
             if (TryChangeManagementKey(touchPolicy, newKeyAlgorithm) == false)
             {