diff --git a/src/commands/command.cr b/src/commands/command.cr
index ff78c524..e4d587f1 100644
--- a/src/commands/command.cr
+++ b/src/commands/command.cr
@@ -12,7 +12,7 @@ module Shards
     @spec : Spec?
     @locks : Array(Dependency)?
 
-    def initialize(path, @sub = nil)
+    def initialize(path)
       if File.directory?(path)
         @path = path
         @spec_path = File.join(path, SPEC_FILENAME)