diff --git a/src/libraries/System.Net.Security/src/System/Net/NegotiateAuthenticationPal.Windows.cs b/src/libraries/System.Net.Security/src/System/Net/NegotiateAuthenticationPal.Windows.cs
index 226b57ef3e0d51..8e86d3dc91ca7e 100644
--- a/src/libraries/System.Net.Security/src/System/Net/NegotiateAuthenticationPal.Windows.cs
+++ b/src/libraries/System.Net.Security/src/System/Net/NegotiateAuthenticationPal.Windows.cs
@@ -587,8 +587,7 @@ public override unsafe void GetMIC(ReadOnlySpan<byte> message, IBufferWriter<byt
                             pBuffers = unmanagedBuffer
                         };
 
-                        uint qop = IsEncrypted ? 0 : Interop.SspiCli.SECQOP_WRAP_NO_ENCRYPT;
-                        int errorCode = Interop.SspiCli.MakeSignature(ref _securityContext._handle, qop, ref sdcInOut, 0);
+                        int errorCode = Interop.SspiCli.MakeSignature(ref _securityContext._handle, 0, ref sdcInOut, 0);
 
                         if (errorCode != 0)
                         {