diff --git a/compiler/cpp/src/generate/t_csharp_generator.cc b/compiler/cpp/src/generate/t_csharp_generator.cc
index d293e18..9b865f5 100644
--- a/compiler/cpp/src/generate/t_csharp_generator.cc
+++ b/compiler/cpp/src/generate/t_csharp_generator.cc
@@ -2884,7 +2884,8 @@
                                                      const vector<t_field*>& members,
                                                      const string& structname) {
   // begin new scope
-  member_mapping_scopes.push_back({});
+  member_mapping_scope dummy;
+  member_mapping_scopes.push_back(dummy);
   member_mapping_scope& active = member_mapping_scopes.back();
   active.scope_member = scope;