diff --git a/lib/listen/record.rb b/lib/listen/record.rb
index 85572cd4..4f8fedf0 100644
--- a/lib/listen/record.rb
+++ b/lib/listen/record.rb
@@ -45,7 +45,7 @@ def file_data(rel_path)
     end
 
     def dir_entries(rel_path)
-      subtree = if [nil, '', '.'].include? rel_path.to_s
+      subtree = if ['', '.'].include? rel_path.to_s
         @tree
       else
         @tree[rel_path.to_s] ||= _auto_hash