diff --git a/ucoin/network/__init__.py b/ucoin/network/__init__.py
index 5d1db511aec31aa4de8df0763a2eb753bb053e0e..a6ba2783413b941f2ebe04ea5fe379ab25265d79 100644
--- a/ucoin/network/__init__.py
+++ b/ucoin/network/__init__.py
@@ -52,7 +52,7 @@ class Wallet(Network):
         - `pgp_fingerprint`: pgp fingerprint to use as a filter
         """
 
-        super().__init__(server, port)
+        super().__init__(server=server, port=port)
 
         self.pgp_fingerprint = pgp_fingerprint