From 0683552b15becd6949ab4e125d9790f1b65b7415 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafael=20Mendon=C3=A7a=20Fran=C3=A7a?=
 <rafaelmfranca@gmail.com>
Date: Fri, 24 Feb 2017 19:28:41 -0500
Subject: Match the behavior of bigdecimal after
 https://github.com/ruby/bigdecimal/pull/55

---
 activemodel/lib/active_model/type/decimal.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/activemodel/lib/active_model/type/decimal.rb b/activemodel/lib/active_model/type/decimal.rb
index b4ba8d4b1f..e6805c5f6b 100644
--- a/activemodel/lib/active_model/type/decimal.rb
+++ b/activemodel/lib/active_model/type/decimal.rb
@@ -24,7 +24,11 @@ module ActiveModel
             when ::Numeric
               BigDecimal(value, precision || BIGDECIMAL_PRECISION)
             when ::String
-              value.to_d rescue BigDecimal(0)
+              begin
+                value.to_d
+              rescue ArgumentError
+                BigDecimal(0)
+              end
             else
               if value.respond_to?(:to_d)
                 value.to_d
-- 
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