diff options
Diffstat (limited to 'ext/json/ext/parser/parser.rl')
| -rw-r--r-- | ext/json/ext/parser/parser.rl | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ext/json/ext/parser/parser.rl b/ext/json/ext/parser/parser.rl index c67634b..dd24cf9 100644 --- a/ext/json/ext/parser/parser.rl +++ b/ext/json/ext/parser/parser.rl @@ -565,6 +565,9 @@ static VALUE convert_encoding(VALUE source) #ifdef HAVE_RUBY_ENCODING_H rb_encoding *enc = rb_enc_get(source); if (enc == rb_ascii8bit_encoding()) { + if (OBJ_FROZEN(source)) { + source = rb_str_dup(source); + } FORCE_UTF8(source); } else { source = rb_str_conv_enc(source, NULL, rb_utf8_encoding()); |