diff --git a/FastMoq.Core/Models/ConstructorHistory.cs b/FastMoq.Core/Models/ConstructorHistory.cs
index f0c4256..3ba4f61 100644
--- a/FastMoq.Core/Models/ConstructorHistory.cs
+++ b/FastMoq.Core/Models/ConstructorHistory.cs
@@ -224,7 +224,7 @@ public bool Contains(Type key)
         public bool TryGetValue(Type key, out ReadOnlyCollection<IHistoryModel> value)
         {
             var result = constructorHistory.TryGetValue(key, out var value2);
-            value = value2?.AsReadOnly();
+            value = value2?.AsReadOnly() ?? new List<IHistoryModel>().AsReadOnly();
             return result;
         }