diff --git a/lib/homesick.rb b/lib/homesick.rb
index 09647f9..f19aca9 100644
--- a/lib/homesick.rb
+++ b/lib/homesick.rb
@@ -22,7 +22,7 @@ class Homesick < Thor
       destination = nil
       if File.exist?(uri)
         uri = Pathname.new(uri).expand_path
-        if uri.to_s.start_with?(repos_dir)
+        if uri.to_s.start_with?(repos_dir.to_s)
           raise "Castle already cloned to #{uri}"
         end