From 1ff4b3f800d369510658b7926a1d6dc9327d0422 Mon Sep 17 00:00:00 2001
From: Clayton Smith <clayton.smith@shopify.com>
Date: Thu, 24 Nov 2016 15:51:25 -0500
Subject: Fix segfault in mrb_proc_copy.

---
 src/proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/proc.c')

diff --git a/src/proc.c b/src/proc.c
index 4f770932b..470547094 100644
--- a/src/proc.c
+++ b/src/proc.c
@@ -140,7 +140,7 @@ mrb_proc_copy(struct RProc *a, struct RProc *b)
 {
   a->flags = b->flags;
   a->body = b->body;
-  if (!MRB_PROC_CFUNC_P(a)) {
+  if (!MRB_PROC_CFUNC_P(a) && a->body.irep) {
     a->body.irep->refcnt++;
   }
   a->target_class = b->target_class;
-- 
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