diff --git a/lib/zold/wallets.rb b/lib/zold/wallets.rb
index 75d7db17..8d4fd1c9 100644
--- a/lib/zold/wallets.rb
+++ b/lib/zold/wallets.rb
@@ -52,6 +52,11 @@ def path
       File.expand_path(@dir)
     end
 
+    # This wallet exists?
+    def exists?(id)
+      File.exist?(File.join(path, id.to_s + Wallet::EXT))
+    end
+
     # Returns the list of their IDs (as plain text)
     def all
       DirItems.new(path).fetch(recursive: false).select do |f|
diff --git a/test/test_upgrades.rb b/test/test_upgrades.rb
index 4c3e58f1..cace2ecf 100755
--- a/test/test_upgrades.rb
+++ b/test/test_upgrades.rb
@@ -75,7 +75,7 @@ def test_already_ran_scripts_dont_run
   private
 
   def run_upgrades(dir)
-    Zold::Upgrades.new(version_file(dir), dir, {}, network: 'test').run
+    Zold::Upgrades.new(version_file(dir), dir, { network: 'test' }).run
   end
 
   def version_file(dir)