diff --git a/IRaCIS.Core.API/appsettings.Test_HIR.json b/IRaCIS.Core.API/appsettings.Test_HIR.json
index a266c274d..3f5e6ef47 100644
--- a/IRaCIS.Core.API/appsettings.Test_HIR.json
+++ b/IRaCIS.Core.API/appsettings.Test_HIR.json
@@ -46,6 +46,7 @@
     "FromEmail": "test-study@extimaging.com",
     "FromName": "Test_HIR",
     "AuthorizationCode": "zhanying123",
-    "SiteUrl": "http://hir.test.extimaging.com/login"
+    "SiteUrl": "http://hir.test.extimaging.com/login",
+    "EmailRegexStr": "^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,}$"
   }
 }
\ No newline at end of file