diff --git a/src/Microsoft.AspNetCore.Server.IISIntegration/Server/IISHttpContext.cs b/src/Microsoft.AspNetCore.Server.IISIntegration/Server/IISHttpContext.cs
index 6b33a6d342..5f1c6ac894 100644
--- a/src/Microsoft.AspNetCore.Server.IISIntegration/Server/IISHttpContext.cs
+++ b/src/Microsoft.AspNetCore.Server.IISIntegration/Server/IISHttpContext.cs
@@ -583,7 +583,7 @@ namespace Microsoft.AspNetCore.Server.IISIntegration
             {
                 var pDataChunks = stackalloc HttpApiTypes.HTTP_DATA_CHUNK[1];
 
-                fixed (byte* pBuffer = &buffer.First.Span.DangerousGetPinnableReference())
+                fixed (byte* pBuffer = &MemoryMarshal.GetReference(buffer.First.Span))
                 {
                     ref var chunk = ref pDataChunks[0];