diff --git a/compiler/cpp/src/generate/t_perl_generator.cc b/compiler/cpp/src/generate/t_perl_generator.cc
index ca3210a..ae204fd 100644
--- a/compiler/cpp/src/generate/t_perl_generator.cc
+++ b/compiler/cpp/src/generate/t_perl_generator.cc
@@ -386,6 +386,7 @@
       out << render_const_value(g_type_string, v_iter->first);
       out << " => ";
       out << render_const_value(field_type, v_iter->second);
+      out << ",";
       out << endl;
     }