diff --git a/code/MessengerApi/Properties/launchSettings.json b/code/MessengerApi/Properties/launchSettings.json
index e290344..1f55cdd 100644
--- a/code/MessengerApi/Properties/launchSettings.json
+++ b/code/MessengerApi/Properties/launchSettings.json
@@ -6,6 +6,7 @@
         "environmentVariables": {
             "PERSISTENCE_TYPE": "Sql",
             "USERSCONFIG_FILE_PATH": "./../../assets/example-users.config",
+            "SQL_CONNECTIONSTRING": ""
             "CORS_ORIGINS": "",
             "PROXIES": "",
             "QUERY_RATE_PER_MINUTE": "100",