diff --git a/lib/ransack/constants.rb b/lib/ransack/constants.rb
index <HASH>..<HASH> 100644
--- a/lib/ransack/constants.rb
+++ b/lib/ransack/constants.rb
@@ -1,8 +1,5 @@
 module Ransack
   module Constants
-    ASC_ARROW           = '&#9650;'.freeze
-    DESC_ARROW          = '&#9660;'.freeze
-
     OR                  = 'or'.freeze
     AND                 = 'and'.freeze
 
diff --git a/lib/ransack/helpers/form_helper.rb b/lib/ransack/helpers/form_helper.rb
index <HASH>..<HASH> 100644
--- a/lib/ransack/helpers/form_helper.rb
+++ b/lib/ransack/helpers/form_helper.rb
@@ -198,8 +198,11 @@ module Ransack
           end
 
           def direction_arrow
-            return Constants::DESC_ARROW if @current_dir == 'desc'.freeze
-            Constants::ASC_ARROW
+            if @current_dir == 'desc'.freeze
+              '&#9660;'.freeze
+            else
+              '&#9650;'.freeze
+            end
           end
 
           def direction_text(dir)
Replace arrow constants with frozen strings

These constants are only used once in the code base and constant lookup
is slower than frozen strings in MRI Ruby <I>+.