1 files changed, 2 insertions, 2 deletions
diff --git a/db.h b/db.h
index 5a2db0cca8..96d0973d87 100644
--- a/db.h
+++ b/db.h
@@ -16,7 +16,7 @@ extern map<string, string> mapAddressBook;
 extern CCriticalSection cs_mapAddressBook;
 extern vector<unsigned char> vchDefaultKey;
 extern bool fClient;
-
+extern int nBestHeight;
 
 
 extern unsigned int nWalletDBUpdated;
@@ -210,7 +210,7 @@ public:
         if (!pdb)
             return false;
         DbTxn* ptxn = NULL;
-        int ret = dbenv.txn_begin(GetTxn(), &ptxn, 0);
+        int ret = dbenv.txn_begin(GetTxn(), &ptxn, DB_TXN_NOSYNC);
         if (!ptxn || ret != 0)
             return false;
         vTxn.push_back(ptxn);