diff --git a/util/cpp/next.c b/util/cpp/next.c
index 64ff5ff2..3d37a39b 100644
--- a/util/cpp/next.c
+++ b/util/cpp/next.c
@@ -1,5 +1,7 @@
 #include "debug.h"
 struct macro *h_macro = 0;
+struct mlist *h_mlist = 0;
 #ifdef DEBUG
 int cnt_macro = 0;
+int cnt_mlist = 0;
 #endif