1 files changed, 3 insertions, 0 deletions
diff --git a/lib.h b/lib.h
index b8948351..5f0df256 100644
--- a/lib.h
+++ b/lib.h
@@ -108,6 +108,9 @@ struct vec {
   /* vec[-2] is allocated size */
   /* vec[-1] is fill pointer */
   val *vec;
+#ifdef HAVE_VALGRIND
+  val *vec_true_start;
+#endif
 };
 
 /*