diff --git a/lib/ransack/configuration.rb b/lib/ransack/configuration.rb
index 9b947bc..198c745 100644
--- a/lib/ransack/configuration.rb
+++ b/lib/ransack/configuration.rb
@@ -35,9 +35,9 @@ module Ransack
     end
 
     # default search_key that, it can be overridden on sort_link level
-    def set_search_key_name(name)
+    def search_key=(name)
       self.options[:search_key] = name
     end
 
   end
-end
\ No newline at end of file
+end