diff --git a/Tranga/Jobs/JobBoss.cs b/Tranga/Jobs/JobBoss.cs
index 99670b4..4380497 100644
--- a/Tranga/Jobs/JobBoss.cs
+++ b/Tranga/Jobs/JobBoss.cs
@@ -171,7 +171,7 @@ public class JobBoss : GlobalBase
         }
     }
 
-    private void UpdateJobFile(Job job)
+    internal void UpdateJobFile(Job job)
     {
         string jobFilePath = Path.Join(settings.jobsFolderPath, $"{job.id}.json");
         
@@ -245,7 +245,9 @@ public class JobBoss : GlobalBase
                 Log($"Next job in {jobs.MinBy(job => job.nextExecution)?.nextExecution.Subtract(DateTime.Now)} {jobs.MinBy(job => job.nextExecution)?.id}");
             }else if (queueHead.progressToken.state is ProgressToken.State.Standby)
             {
-                Job[] subJobs = jobQueue.Peek().ExecuteReturnSubTasks(this).ToArray();
+                Job eJob = jobQueue.Peek();
+                Job[] subJobs = eJob.ExecuteReturnSubTasks(this).ToArray();
+                UpdateJobFile(eJob);
                 AddJobs(subJobs);
                 AddJobsToQueue(subJobs);
             }else if (queueHead.progressToken.state is ProgressToken.State.Running && DateTime.Now.Subtract(queueHead.progressToken.lastUpdate) > TimeSpan.FromMinutes(5))
diff --git a/Tranga/Jobs/UpdateMetadata.cs b/Tranga/Jobs/UpdateMetadata.cs
index e9107ce..5471685 100644
--- a/Tranga/Jobs/UpdateMetadata.cs
+++ b/Tranga/Jobs/UpdateMetadata.cs
@@ -33,7 +33,7 @@ public class UpdateMetadata : Job
                 return Array.Empty<Job>();
             }
             
-            this.manga.UpdateMetadata(updatedManga);
+            this.manga = manga.WithMetadata(updatedManga);
             this.manga.SaveSeriesInfoJson(settings.downloadLocation, true);
             this.progressToken.Complete();
         }
diff --git a/Tranga/Manga.cs b/Tranga/Manga.cs
index 32ea54b..388d02d 100644
--- a/Tranga/Manga.cs
+++ b/Tranga/Manga.cs
@@ -75,18 +75,21 @@ public struct Manga
         this.websiteUrl = websiteUrl;
     }
 
-    public void UpdateMetadata(Manga newManga)
+    public Manga WithMetadata(Manga newManga)
     {
-        this.sortName = newManga.sortName;
-        this.description = newManga.description;
-        this.coverUrl = newManga.coverUrl;
-        this.authors = authors.Union(newManga.authors).ToList();
-        this.altTitles = altTitles.UnionBy(newManga.altTitles, kv => kv.Key).ToDictionary(x => x.Key, x => x.Value);
-        this.tags = tags.Union(newManga.tags).ToArray();
-        this.status = newManga.status;
-        this.releaseStatus = newManga.releaseStatus;
-        this.websiteUrl = newManga.websiteUrl;
-        this.year = newManga.year;
+        return this with
+        {
+            sortName = newManga.sortName,
+            description = newManga.description,
+            coverUrl = newManga.coverUrl,
+            authors = authors.Union(newManga.authors).ToList(),
+            altTitles = altTitles.UnionBy(newManga.altTitles, kv => kv.Key).ToDictionary(x => x.Key, x => x.Value),
+            tags = tags.Union(newManga.tags).ToArray(),
+            status = newManga.status,
+            releaseStatus = newManga.releaseStatus,
+            websiteUrl = newManga.websiteUrl,
+            year = newManga.year
+        };
     }
 
     public override bool Equals(object? obj)