diff --git a/Il2CppInterop.Generator/Utils/CorlibReferences.cs b/Il2CppInterop.Generator/Utils/CorlibReferences.cs
index 17cb4902..220414d7 100644
--- a/Il2CppInterop.Generator/Utils/CorlibReferences.cs
+++ b/Il2CppInterop.Generator/Utils/CorlibReferences.cs
@@ -181,7 +181,7 @@ public static TypeReference Func(this ModuleDefinition module, int n = 0)
         {
             0 => module.ImportCorlibReference("System", "Func`1"),
             1 => module.ImportCorlibReference("System", "Func`2"),
-            _ => module.ImportCorlibReference("System", $"Func`{n}")
+            _ => module.ImportCorlibReference("System", $"Func`{n + 1}")
         };
     }