From 1e1a23b5d8855747ebd362d16fc2b55e4f50e3bd Mon Sep 17 00:00:00 2001
From: Miguel Freitas <miguelfreitas@users.noreply.github.com>
Date: Thu, 23 Jan 2014 19:25:08 -0200
Subject: [PATCH] fix GetNextInMainChain (thanks Pieter Wuille for suggesting
 this)

---
 src/main.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main.h b/src/main.h
index 827aeabb..6a0d56e1 100644
--- a/src/main.h
+++ b/src/main.h
@@ -751,6 +751,7 @@ public:
     }
 
     CBlockIndex *GetNextInMainChain() const {
+        if( !IsInMainChain() ) return NULL;
         return nHeight+1 >= (int)vBlockIndexByHeight.size() ? NULL : vBlockIndexByHeight[nHeight+1];
     }