[ruby/json] Fix redundant to_str call

https://github.com/ruby/json/commit/61f022dfbd

1 files changed, 1 insertions, 1 deletions

diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb
index 03aaaa6e7e..4c6b2e1a72 100644
--- a/ext/json/lib/json/common.rb
+++ b/ext/json/lib/json/common.rb
@@ -26,7 +26,7 @@ module JSON
       elsif object.respond_to?(:to_str)
         str = object.to_str
         if str.is_a?(String)
-          return JSON.parse(object.to_str, opts)
+          return JSON.parse(str, opts)
         end
       end