diff --git a/pywallet/utils/bip32.py b/pywallet/utils/bip32.py
index 51f07fc..50697a4 100644
--- a/pywallet/utils/bip32.py
+++ b/pywallet/utils/bip32.py
@@ -131,7 +131,7 @@ class Wallet(object):
             else:
                 raise ValueError("parameter must be an int or long")
 
-        self.network = network
+        self.network = Wallet.get_network(network)
         self.depth = l(depth)
         if (isinstance(parent_fingerprint, six.string_types) or
                 isinstance(parent_fingerprint, six.binary_type)):