diff --git a/ruby/lib/totalspaces2.rb b/ruby/lib/totalspaces2.rb
index bbc1c14..98884c5 100644
--- a/ruby/lib/totalspaces2.rb
+++ b/ruby/lib/totalspaces2.rb
@@ -236,7 +236,7 @@ def display_list
     # Returns information about the main display.
     # Methods that do not take a display id always operate on this display.
     #
-    #   puts "Main display id: #{TotalSpaces2.main_display_id}"
+    #   puts "Main display id: #{TotalSpaces2.main_display}"
     #
     #   {:display_id=>69679040, :display_name=>"Color LCD", :width=>1440, :height=>900}
     #