1 files changed, 1 insertions, 0 deletions

diff --git a/lib.h b/lib.h
index a6e4869e..f254ce6b 100644
--- a/lib.h
+++ b/lib.h
@@ -471,6 +471,7 @@ struct seq_iter_ops {
 
 typedef struct seq_build {
   val obj;
+  loc tail;
   val self;
   union {
     val from_list_meth;