diff --git a/compiler/cpp/src/generate/t_csharp_generator.cc b/compiler/cpp/src/generate/t_csharp_generator.cc
index 617cbf0..8e477e4 100644
--- a/compiler/cpp/src/generate/t_csharp_generator.cc
+++ b/compiler/cpp/src/generate/t_csharp_generator.cc
@@ -2139,7 +2139,7 @@
   t_field felem(tset->get_elem_type(), elem);
 
   indent(out) <<
-    declare_field(&felem, true) << endl;
+    declare_field(&felem) << endl;
 
   generate_deserialize_field(out, &felem);
 
@@ -2152,7 +2152,7 @@
   t_field felem(tlist->get_elem_type(), elem);
 
   indent(out) <<
-    declare_field(&felem, true) << endl;
+    declare_field(&felem) << endl;
 
   generate_deserialize_field(out, &felem);