diff --git a/AsbCloudWebApi/Controllers/ProcessMapController.cs b/AsbCloudWebApi/Controllers/ProcessMapController.cs
index eb18b82f..e97e954b 100644
--- a/AsbCloudWebApi/Controllers/ProcessMapController.cs
+++ b/AsbCloudWebApi/Controllers/ProcessMapController.cs
@@ -25,7 +25,7 @@ namespace AsbCloudWebApi.Controllers
         private readonly IProcessMapReportMakerService processMapReportService;
         private readonly IProcessMapReportService processMapService;
 
-        private const string SirnalRMethodGetDataName = "ProcessMapChanged";
+        private const string SirnalRMethodGetDataName = "UpdateProcessMap";
 
         public ProcessMapController(
             IWellService wellService,