diff --git a/src/Microsoft.SqlTools.ServiceLayer/Connection/ConnectionService.cs b/src/Microsoft.SqlTools.ServiceLayer/Connection/ConnectionService.cs
index afe86bd0..0ace6c92 100644
--- a/src/Microsoft.SqlTools.ServiceLayer/Connection/ConnectionService.cs
+++ b/src/Microsoft.SqlTools.ServiceLayer/Connection/ConnectionService.cs
@@ -358,20 +358,22 @@ namespace Microsoft.SqlTools.ServiceLayer.Connection
                 return false;
             }
 
-            // Send a telemetry notification for intellisense performance metrics
-            ServiceHost.SendEvent(TelemetryNotification.Type, new TelemetryParams()
+            if (ServiceHost != null)
             {
-                Params = new TelemetryProperties
+                // Send a telemetry notification for intellisense performance metrics
+                ServiceHost.SendEvent(TelemetryNotification.Type, new TelemetryParams()
                 {
-                    Properties = new Dictionary<string, string>
+                    Params = new TelemetryProperties
+                    {
+                        Properties = new Dictionary<string, string>
                     {
                         { "IsAzure", info.IsAzure ? "1" : "0" }
                     },
-                    EventName = TelemetryEventNames.IntellisenseQuantile,
-                    Measures = info.IntellisenseMetrics.Quantile
-                }
-            });
-
+                        EventName = TelemetryEventNames.IntellisenseQuantile,
+                        Measures = info.IntellisenseMetrics.Quantile
+                    }
+                });
+            }
 
             // Close the connection            
             info.SqlConnection.Close();