diff --git a/checks.d/sqlserver.py b/checks.d/sqlserver.py
index ada106c046..f6791f178d 100644
--- a/checks.d/sqlserver.py
+++ b/checks.d/sqlserver.py
@@ -48,7 +48,8 @@ def _conn_string(self, host, username, password, database):
             conn_str += 'User ID=%s;' % (username)
         if password:
             conn_str += 'Password=%s;' % (password)
-
+        if not username and not password:
+            conn_str += 'Integrated Security=SSPI;'
         return conn_str
 
     def check(self, instance):
diff --git a/conf.d/sqlserver.yaml.example b/conf.d/sqlserver.yaml.example
index a7084023db..5e0e95b421 100644
--- a/conf.d/sqlserver.yaml.example
+++ b/conf.d/sqlserver.yaml.example
@@ -4,6 +4,10 @@ init_config:
     # `sys.dm_os_performance_counters` table. You can easily add additional
     # metrics by following the custom_metrics structure shown below.
     #
+    # In order to connect to SQL Server either enable SQL Authentication and
+    # specify a username or password below. If you do not specify a username 
+    # or password then we will connect using integrated authentication.
+    #
     #custom_metrics:
     #
     #    This is a basic custom metric. There is not instance assicated with