diff --git a/lib/module.js b/lib/module.js
index 7f048fd..d1dbe67 100644
--- a/lib/module.js
+++ b/lib/module.js
@@ -64,11 +64,14 @@ module.exports = function appInsights (moduleOptions) {
       logger.info('Server errors will not be logged because no serverConnectionString provided')
       return
     }
+
     const appInsightsServer = AppInsights.setup(optionsServer.serverConnectionString)
-    const config = { ...AppInsights.defaultClient.config, ...optionsServer.serverConfig }
 
-    AppInsights.defaultClient.config = config
     // Initialize AppInsights
+    for (const [key, value] of Object.entries(optionsServer.serverConfig)) {
+      AppInsights.defaultClient.config[key] = value
+    }
+
     if (optionsServer.initialize) {
       appInsightsServer.start()
     }