diff --git a/lib/review/book/base.rb b/lib/review/book/base.rb
index 1035a49c3..7066a0dc4 100644
--- a/lib/review/book/base.rb
+++ b/lib/review/book/base.rb
@@ -178,21 +178,11 @@ def config
         @config ||= Configure.values
       end
 
-      # backward compatible
-      def param=(param)
-        @config = param
-      end
-
       def load_config(filename)
         new_conf = YAML.load_file(filename)
         @config.merge!(new_conf)
       end
 
-      # backward compatible
-      def param
-        @config
-      end
-
       def catalog
         return @catalog if @catalog.present?
 
diff --git a/test/test_book.rb b/test/test_book.rb
index d8d3eb680..2b4da4dd8 100644
--- a/test/test_book.rb
+++ b/test/test_book.rb
@@ -157,16 +157,14 @@ def test_read_bib
   # backword compatible
   def test_setParameter
     book = Book::Base.new(File.dirname(__FILE__))
-    book.param = :test
-    assert_equal :test, book.param # old way
-    assert_equal :test, book.config # new way
+    book.config = :test
+    assert_equal :test, book.config
   end
 
   def test_setConfig
     book = Book::Base.new(File.dirname(__FILE__))
     book.config = :test
-    assert_equal :test, book.param # old way
-    assert_equal :test, book.config # new way
+    assert_equal :test, book.config
   end
 
   def test_parse_chapters