diff --git a/lib/blockchain.py b/lib/blockchain.py
index 324d2a6e..81b94055 100644
--- a/lib/blockchain.py
+++ b/lib/blockchain.py
@@ -277,7 +277,7 @@ class Blockchain(threading.Thread):
             i -= 1
 
         c = int('0x'+c[0:6],16)
-        if c > 0x800000: 
+        if c >= 0x800000: 
             c /= 256
             i += 1