diff --git a/AssemblyUnhollower/UtilGenerator.cs b/AssemblyUnhollower/UtilGenerator.cs
index 74fe812..4d8f283 100644
--- a/AssemblyUnhollower/UtilGenerator.cs
+++ b/AssemblyUnhollower/UtilGenerator.cs
@@ -67,6 +67,7 @@ public static void EmitObjectStore(this ILProcessor body, TypeReference original
                     var classPointerFieldRef = new FieldReference(nameof(Il2CppClassPointerStore<int>.NativeClassPtr), imports.IntPtr, classPointerTypeRef);
                     body.Emit(OpCodes.Ldsfld, enclosingType.NewType.Module.ImportReference(classPointerFieldRef));
                     body.Emit(OpCodes.Ldc_I4_0);
+                    body.Emit(OpCodes.Conv_U);
                     body.Emit(OpCodes.Call, imports.ValueSizeGet);
                     body.Emit(OpCodes.Cpblk);
                     body.Emit(OpCodes.Pop);
diff --git a/ReleaseChangelog.md b/ReleaseChangelog.md
index d2bef37..bebd0b5 100644
--- a/ReleaseChangelog.md
+++ b/ReleaseChangelog.md
@@ -1,5 +1,5 @@
 This is a small bugfix update. Generated assemblies should be fully compatible with those generated by 0.4.17.x.  
   
 New features:
- * Fixed compatibility with Unity versions 2021.2.0 and above 
- 
\ No newline at end of file
+ * Fixed compatibility with Unity versions 2021.2.0 and above
+ * Fixed setters of non-blittable-value-type non-generic fields having invalid IL