diff --git a/src/vm.c b/src/vm.c
index 8b7c51f1..1fe153a4 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -994,14 +994,11 @@ pic_apply(pic_state *pic, struct pic_proc *proc, pic_value argv)
   } VM_LOOP_END;
 }
 
-static pic_code trampoline_iseq[] = {
-  { OP_NOP,		{0} },
-  { OP_TAILCALL,	{0} },
-};
-
 pic_value
 pic_apply_trampoline(pic_state *pic, struct pic_proc *proc, pic_value args)
 {
+  static const pic_code iseq[] = { { OP_NOP, {0} }, { OP_TAILCALL, { .i = -1 } } };
+
   pic_value v, *sp;
   pic_callinfo *ci;
 
@@ -1012,10 +1009,8 @@ pic_apply_trampoline(pic_state *pic, struct pic_proc *proc, pic_value args)
     *sp++ = v;
   }
 
-  trampoline_iseq[1].u.i = -1;
-
   ci = PUSHCI();
-  ci->ip = trampoline_iseq;
+  ci->ip = (pic_code *)iseq;
   ci->fp = pic->sp;
   ci->retc = pic_length(pic, args);
   return pic_obj_value(proc);