diff --git a/src/Serval.Translation/Controllers/TranslationEnginesController.cs b/src/Serval.Translation/Controllers/TranslationEnginesController.cs
index 4c3efb6f..e4eed780 100644
--- a/src/Serval.Translation/Controllers/TranslationEnginesController.cs
+++ b/src/Serval.Translation/Controllers/TranslationEnginesController.cs
@@ -984,13 +984,12 @@ private static Build Map(Engine engine, TranslationBuildConfigDto source)
         }
         try
         {
-            JsonSerializer.Deserialize<JsonObject>(source.Options ?? "{}");
+            build.Options = JsonConvert.DeserializeObject<IDictionary<string, object>>(source.Options ?? "{}");
         }
         catch (Exception e)
         {
             throw new ArgumentException($"Unable to parse field 'options' : {e.Message}");
         }
-        build.Options = source.Options;
         return build;
     }
 
@@ -1030,7 +1029,7 @@ private TranslationBuildDto Map(Build source)
             Message = source.Message,
             State = source.State,
             DateFinished = source.DateFinished,
-            Options = source.Options
+            Options = JsonConvert.SerializeObject(source.Options)
         };
     }
 
diff --git a/src/Serval.Translation/Models/Build.cs b/src/Serval.Translation/Models/Build.cs
index 5185f64f..d934a35c 100644
--- a/src/Serval.Translation/Models/Build.cs
+++ b/src/Serval.Translation/Models/Build.cs
@@ -12,5 +12,5 @@ public class Build : IEntity
     public string? Message { get; set; }
     public JobState State { get; set; } = JobState.Pending;
     public DateTime? DateFinished { get; set; }
-    public string? Options { get; set; }
+    public IDictionary<string, object>? Options { get; set; }
 }
diff --git a/src/Serval.Translation/Usings.cs b/src/Serval.Translation/Usings.cs
index 2129040f..88dfcf14 100644
--- a/src/Serval.Translation/Usings.cs
+++ b/src/Serval.Translation/Usings.cs
@@ -11,6 +11,7 @@
 global using Microsoft.AspNetCore.Routing;
 global using Microsoft.Extensions.Configuration;
 global using Microsoft.Extensions.Options;
+global using Newtonsoft.Json;
 global using NSwag.Annotations;
 global using Serval.Shared.Configuration;
 global using Serval.Shared.Contracts;