diff --git a/src/Renci.SshNet.Tests/Classes/SftpClientTest.Connect.cs b/src/Renci.SshNet.Tests/Classes/SftpClientTest.Connect.cs
index c2798104a..db03567b4 100644
--- a/src/Renci.SshNet.Tests/Classes/SftpClientTest.Connect.cs
+++ b/src/Renci.SshNet.Tests/Classes/SftpClientTest.Connect.cs
@@ -20,7 +20,7 @@ public void Connect_HostNameInvalid_ShouldThrowSocketExceptionWithErrorCodeHostN
             }
             catch (SocketException ex)
             {
-                Assert.IsTrue(ex.ErrorCode is (int) SocketError.HostNotFound or (int) SocketError.TryAgain);
+                Assert.IsTrue(ex.SocketErrorCode is SocketError.HostNotFound or SocketError.TryAgain);
             }
         }
 
@@ -38,7 +38,7 @@ public void Connect_ProxyHostNameInvalid_ShouldThrowSocketExceptionWithErrorCode
             }
             catch (SocketException ex)
             {
-                Assert.IsTrue(ex.ErrorCode is (int) SocketError.HostNotFound or (int) SocketError.TryAgain);
+                Assert.IsTrue(ex.SocketErrorCode is SocketError.HostNotFound or SocketError.TryAgain);
             }
         }
     }