diff --git a/lib/bitcoin.py b/lib/bitcoin.py
index 792aa3baa..a4c30feab 100644
--- a/lib/bitcoin.py
+++ b/lib/bitcoin.py
@@ -255,7 +255,7 @@ def public_key_from_private_key(sec):
 
 def address_from_private_key(sec):
     public_key = public_key_from_private_key(sec)
-    address = public_key_to_bc_address(public_key)
+    address = public_key_to_bc_address(public_key.decode('hex'))
     return address