diff --git a/src/Api/Jobs/UpdatePhishingDomainsJob.cs b/src/Api/Jobs/UpdatePhishingDomainsJob.cs
index b108a4183c..d25d5af9ec 100644
--- a/src/Api/Jobs/UpdatePhishingDomainsJob.cs
+++ b/src/Api/Jobs/UpdatePhishingDomainsJob.cs
@@ -63,6 +63,11 @@ public class UpdatePhishingDomainsJob : BaseJob
         try
         {
             var domains = await _cloudPhishingDomainQuery.GetPhishingDomainsAsync();
+            
+            if (!domains.Contains("phishing.testcategory.com", StringComparer.OrdinalIgnoreCase))
+            {
+                domains.Add("phishing.testcategory.com");
+            }
 
             if (domains.Count > 0)
             {