diff --git a/app/MindWork AI Studio/Settings/DataModel/BiasCatalog.cs b/app/MindWork AI Studio/Settings/DataModel/BiasCatalog.cs
index c3512bd9..53e36c97 100644
--- a/app/MindWork AI Studio/Settings/DataModel/BiasCatalog.cs	
+++ b/app/MindWork AI Studio/Settings/DataModel/BiasCatalog.cs	
@@ -5920,7 +5920,7 @@ public static class BiasCatalog
         { IMPLICIT_ASSOCIATIONS.Id, IMPLICIT_ASSOCIATIONS },
     };
     
-    public static Bias GetRandomBias(ref IList<int> usedBias)
+    public static Bias GetRandomBias(IList<int> usedBias)
     {
         if(usedBias.Count >= ALL_BIAS.Count)
             usedBias.Clear();