diff --git a/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SNI/SNIProxy.cs b/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SNI/SNIProxy.cs
index 8038220844..c35d4b64ac 100644
--- a/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SNI/SNIProxy.cs
+++ b/src/Microsoft.Data.SqlClient/netcore/src/Microsoft/Data/SqlClient/SNI/SNIProxy.cs
@@ -685,7 +685,7 @@ private bool InferConnectionDetails()
 
             int commaIndex = _dataSourceAfterTrimmingProtocol.IndexOf(CommaSeparator);
 
-            int backSlashIndex = _dataSourceAfterTrimmingProtocol.IndexOf(PipeBeginning);
+            int backSlashIndex = _dataSourceAfterTrimmingProtocol.IndexOf(BackSlashCharacter);
 
             // Check the parameters. The parameters are Comma separated in the Data Source. The parameter we really care about is the port
             // If Comma exists, the try to get the port number