1 files changed, 9 insertions, 10 deletions
diff --git a/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
index 234283e792..52bd229416 100644
--- a/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
@@ -1,15 +1,14 @@
-require 'bigdecimal'
-require 'bigdecimal/util'
+# frozen_string_literal: true
 
-class BigDecimal
-  DEFAULT_STRING_FORMAT = 'F'
-  alias_method :to_default_s, :to_s
+require "bigdecimal"
+require "bigdecimal/util"
 
-  def to_s(format = nil, options = nil)
-    if format.is_a?(Symbol)
-      to_formatted_s(format, options || {})
-    else
-      to_default_s(format || DEFAULT_STRING_FORMAT)
+module ActiveSupport
+  module BigDecimalWithDefaultFormat #:nodoc:
+    def to_s(format = "F")
+      super(format)
     end
   end
 end
+
+BigDecimal.prepend(ActiveSupport::BigDecimalWithDefaultFormat)