diff --git a/crypto777/bitcoind_RPC.c b/crypto777/bitcoind_RPC.c
index f54394d90..a3488aeae 100755
--- a/crypto777/bitcoind_RPC.c
+++ b/crypto777/bitcoind_RPC.c
@@ -277,7 +277,7 @@ try_again:
 
 void init_string(struct return_string *s)
 {
-    s->len = 8191;
+    s->len = 0;
     s->ptr = (char *)calloc(1,s->len+1);
     if ( s->ptr == NULL )
     {