diff --git a/src/Microsoft.AspNetCore.Http.Connections/Internal/Transports/WebSocketsTransport.cs b/src/Microsoft.AspNetCore.Http.Connections/Internal/Transports/WebSocketsTransport.cs
index 902f4a9d7d..3632e29c52 100644
--- a/src/Microsoft.AspNetCore.Http.Connections/Internal/Transports/WebSocketsTransport.cs
+++ b/src/Microsoft.AspNetCore.Http.Connections/Internal/Transports/WebSocketsTransport.cs
@@ -182,7 +182,10 @@ namespace Microsoft.AspNetCore.Http.Connections.Internal.Transports
                     }
                 }
             }
-            catch (WebSocketException ex) when (ex.ErrorCode == 997)
+            catch (WebSocketException ex) when (
+                ex.ErrorCode == 997 ||
+                // Sometimes this error is raised without the ErrorCode
+                ex.Message == "The remote party closed the WebSocket connection without completing the close handshake.")
             {
                 // The remote party closed the WebSocket connection without completing the close handshake
                 // Don't long an error for this exception