diff --git a/CodeConverter/CSharp/OperationExtensions.cs b/CodeConverter/CSharp/OperationExtensions.cs
index 495e4f6f..8ffbd337 100644
--- a/CodeConverter/CSharp/OperationExtensions.cs
+++ b/CodeConverter/CSharp/OperationExtensions.cs
@@ -56,9 +56,10 @@ public static bool IsAssignableExpression(this IOperation operation)
             case OperationKind.DynamicMemberReference:
                 return true;
 
-            //Just documenting since it's the only one mentioning reference that can't necessarily be assigned to AFAIK
             case OperationKind.PropertyReference:
-                return false;
+                //a property might be RefReturn, if it's defined in a referenced C# assembly
+                var prop = ((IPropertyReferenceOperation)operation).Property;
+                return prop.ReturnsByRef || prop.ReturnsByRefReadonly;
         }
 
         return false;