diff --git a/lib/commands.py b/lib/commands.py
index be45f9d47..ac1ee5b7e 100644
--- a/lib/commands.py
+++ b/lib/commands.py
@@ -286,7 +286,7 @@ class Commands:
         return c
 
 
-    def addresses(self, show_all):
+    def addresses(self, show_all = False):
         out = []
         for addr in self.wallet.all_addresses():
             if show_all or not self.wallet.is_change(addr):