diff --git a/compiler/cpp/src/globals.h b/compiler/cpp/src/globals.h
index 51502c7..dd1067f 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_slist;
 extern t_type* g_type_bool;
 extern t_type* g_type_byte;
 extern t_type* g_type_i16;