diff --git a/ibis/backends/mssql/__init__.py b/ibis/backends/mssql/__init__.py
index a1adff0fba97..79a86611bb8c 100644
--- a/ibis/backends/mssql/__init__.py
+++ b/ibis/backends/mssql/__init__.py
@@ -114,8 +114,7 @@ def do_connect(
 
         con = pyodbc.connect(
             user=user,
-            server=host,
-            port=port,
+            server=f"{host},{port}",
             password=password,
             database=database,
             driver=driver,