diff --git a/src/Jackett/Controllers/PotatoController.cs b/src/Jackett/Controllers/PotatoController.cs
index 1e228c4ee..5b6cd8667 100644
--- a/src/Jackett/Controllers/PotatoController.cs
+++ b/src/Jackett/Controllers/PotatoController.cs
@@ -147,7 +147,7 @@ namespace Jackett.Controllers
                         size = (long)release.Size / (1024 * 1024), // This is in MB
                         leechers = (int)release.Peers - (int)release.Seeders,
                         seeders = (int)release.Seeders,
-                        publish_date = release.PublishDate.ToUniversalTime().ToString("s")
+                        publish_date = r.PublishDate == DateTime.MinValue ? null : release.PublishDate.ToUniversalTime().ToString("s")
                     });
                 }
             }