diff --git a/compiler/cpp/src/globals.h b/compiler/cpp/src/globals.h
index dd1067f..afc41da 100644
--- a/compiler/cpp/src/globals.h
+++ b/compiler/cpp/src/globals.h
@@ -47,6 +47,7 @@
 
 extern t_type* g_type_void;
 extern t_type* g_type_string;
+extern t_type* g_type_binary;
 extern t_type* g_type_slist;
 extern t_type* g_type_bool;
 extern t_type* g_type_byte;