1 files changed, 3 insertions, 0 deletions
diff --git a/lib.c b/lib.c
index abcce6ba..64a22b68 100644
--- a/lib.c
+++ b/lib.c
@@ -2501,6 +2501,9 @@ val cons(val car, val cdr)
   if (recycled_conses) {
     obj = recycled_conses;
     recycled_conses = recycled_conses->c.cdr;
+#if CONFIG_GEN_GC
+    gc_mutated(obj);
+#endif
   } else {
     obj = make_obj();
     obj->c.type = CONS;