diff --git a/API/Tranga.cs b/API/Tranga.cs
index 027d5ae..3b34c91 100644
--- a/API/Tranga.cs
+++ b/API/Tranga.cs
@@ -124,7 +124,8 @@ public static class Tranga
             foreach ((Thread thread, Job job) thread in removeFromThreadsList)
             {
                 RunningJobs.Remove(thread.thread);
-                context.Jobs.Update(thread.job);
+                if(context.Jobs.Find(thread.job.JobId) is not null)
+                    context.Jobs.Update(thread.job);
             }
 
             context.SaveChanges();