diff --git a/src/HuppyService/HuppyService.Service/Configuration/AppConfigurator.cs b/src/HuppyService/HuppyService.Service/Configuration/AppConfigurator.cs
index eab2112..950f528 100644
--- a/src/HuppyService/HuppyService.Service/Configuration/AppConfigurator.cs
+++ b/src/HuppyService/HuppyService.Service/Configuration/AppConfigurator.cs
@@ -33,8 +33,8 @@ public async Task UseDatabaseMigrator()
 
         public void MapGrpcServices()
         {
-            _app.MapGrpcService<GreeterService>();
-            _app.MapGrpcService<GPTService>();
+            _app?.MapGrpcService<GreeterService>();
+            _app?.MapGrpcService<GPTService>();
         }
     }
 }