diff --git a/compiler/cpp/src/generate/t_csharp_generator.cc b/compiler/cpp/src/generate/t_csharp_generator.cc
index 11db5d6..7944df0 100644
--- a/compiler/cpp/src/generate/t_csharp_generator.cc
+++ b/compiler/cpp/src/generate/t_csharp_generator.cc
@@ -547,7 +547,7 @@
 
   if (!defval || needtype) {
     out <<
-      (in_static ? "" : "public static ") <<
+      (in_static ? "" : type->is_base_type() ? "public const " : "public static ") <<
       type_name(type) << " ";
   }
   if (type->is_base_type()) {