diff --git a/iguana/iguana_blocks.c b/iguana/iguana_blocks.c
index 82dbbec9a..1323ac99f 100755
--- a/iguana/iguana_blocks.c
+++ b/iguana/iguana_blocks.c
@@ -190,6 +190,8 @@ int32_t iguana_blockvalidate(struct iguana_info *coin,int32_t *validp,struct igu
     bits256 hash2; uint8_t serialized[sizeof(struct iguana_msgblock) + 4096];
     *validp = 0;
     iguana_serialize_block(coin->chain,&hash2,serialized,block);
+    if ( coin->MAXPEERS == 1 )
+        hash2 = block->RO.hash2;
     *validp = (memcmp(hash2.bytes,block->RO.hash2.bytes,sizeof(hash2)) == 0);
     block->valid = *validp;
     char str[65]; char str2[65];