1 files changed, 1 insertions, 0 deletions
diff --git a/parse.y b/parse.y
index b3c3bc98f3..b81e37ee0f 100644
--- a/parse.y
+++ b/parse.y
@@ -8170,6 +8170,7 @@ reg_compile_gen(struct parser_params* parser, VALUE str, int options)
 	compile_error(PARSER_ARG "%s", RSTRING_PTR(re));
 	return Qnil;
     }
+    rb_enc_copy(re, str);
     return re;
 }