diff --git a/compiler/cpp/src/thrift/generate/t_c_glib_generator.cc b/compiler/cpp/src/thrift/generate/t_c_glib_generator.cc
index 06dce57..5cd4091 100644
--- a/compiler/cpp/src/thrift/generate/t_c_glib_generator.cc
+++ b/compiler/cpp/src/thrift/generate/t_c_glib_generator.cc
@@ -2759,9 +2759,14 @@
              << "gobject_class->finalize = " << class_name_lc << "_finalize;" << '\n' << indent()
              << "gobject_class->set_property = " << class_name_lc << "_set_property;" << '\n'
              << indent() << "gobject_class->get_property = " << class_name_lc << "_get_property;"
-             << '\n' << '\n' << indent()
-             << "dispatch_processor_class->dispatch_call = " << class_name_lc << "_dispatch_call;"
-             << '\n' << indent() << "cls->dispatch_call = " << class_name_lc << "_dispatch_call;"
+             << '\n' << '\n';
+
+  if (extends_service) {
+    f_service_ << indent() << "dispatch_processor_class->dispatch_call = " << class_name_lc
+               << "_dispatch_call;" << '\n';
+  }
+
+  f_service_ << indent() << "cls->dispatch_call = " << class_name_lc << "_dispatch_call;"
              << '\n' << '\n' << indent() << "param_spec = g_param_spec_object (\"handler\","
              << '\n';
   args_indent = indent() + string(34, ' ');