diff --git a/src/cli/cli_helper.rb b/src/cli/cli_helper.rb
index e521f194ce..7aae190ba0 100644
--- a/src/cli/cli_helper.rb
+++ b/src/cli/cli_helper.rb
@@ -325,7 +325,7 @@ module CLIHelper
             column[:size] = 5
 
             conf.each do |c|
-                case c.class
+                case c
                 when Symbol
                     column[c] = true
                 when Hash