1 files changed, 3 insertions, 0 deletions
diff --git a/src/unit.h b/src/unit.h
index 1295d9ff52..f1171270f8 100644
--- a/src/unit.h
+++ b/src/unit.h
@@ -176,6 +176,9 @@ struct Meta {
         /* GC queue */
         LIST_FIELDS(Meta, gc_queue);
 
+        /* This follows another unit in state */
+        Unit *following;
+
         /* Used during GC sweeps */
         unsigned gc_marker;