diff --git a/src/cont.c b/src/cont.c
index 30d26568..6839c586 100644
--- a/src/cont.c
+++ b/src/cont.c
@@ -113,9 +113,12 @@ native_stack_length(pic_state *pic, char **pos)
 static void
 save_cont(pic_state *pic, struct pic_cont **c)
 {
+  void pic_vm_tear_off(pic_state *);
   struct pic_cont *cont;
   char *pos;
 
+  pic_vm_tear_off(pic);         /* tear off */
+
   cont = *c = (struct pic_cont *)pic_obj_alloc(pic, sizeof(struct pic_cont), PIC_TT_CONT);
 
   cont->blk = pic->blk;
@@ -163,13 +166,10 @@ native_stack_extend(pic_state *pic, struct pic_cont *cont)
 noreturn static void
 restore_cont(pic_state *pic, struct pic_cont *cont)
 {
-  void pic_vm_tear_off(pic_state *);
   char v;
   struct pic_cont *tmp = cont;
   struct pic_block *blk;
 
-  pic_vm_tear_off(pic);         /* tear off */
-
   if (&v < pic->native_stack_start) {
     if (&v > cont->stk_pos) native_stack_extend(pic, cont);
   }