1 files changed, 4 insertions, 0 deletions
diff --git a/tree.c b/tree.c
index 01844931..8c0adb84 100644
--- a/tree.c
+++ b/tree.c
@@ -921,6 +921,7 @@ val copy_search_tree(val tree)
   val ntree = cobj(coerce(mem_t *, ntr), tree_cls, &tree_ops);
   *ntr = *otr;
   ntr->root = nroot;
+  gc_hint(tree);
   return ntree;
 }
 
@@ -933,6 +934,7 @@ val make_similar_tree(val tree)
   *ntr = *otr;
   ntr->root = nil;
   ntr->size = ntr->max_size = 0;
+  gc_hint(tree);
   return ntree;
 }
 
@@ -1014,6 +1016,8 @@ val copy_tree_iter(val iter)
 
   memcpy(tdid->ti.path, tdis->ti.path, sizeof tdid->ti.path[0] * depth);
 
+  gc_hint(iter);
+
   return iter_copy;
 }