1 files changed, 1 insertions, 1 deletions
diff --git a/re.c b/re.c
index a405f9f57a..e2d5e9dc14 100644
--- a/re.c
+++ b/re.c
@@ -1754,7 +1754,7 @@ rb_reg_quote(str)
 	    goto meta_found;
 	}
     }
-    return str;
+    return rb_str_new3(str);
 
   meta_found:
     tmp = rb_str_new(0, RSTRING(str)->len*2);