1 files changed, 1 insertions, 1 deletions
diff --git a/error.c b/error.c
index 7d533cc9a5..0a84937d78 100644
--- a/error.c
+++ b/error.c
@@ -1264,7 +1264,7 @@ name_err_mesg_to_str(VALUE obj)
 	else {
 	    c = s = FAKE_CSTR(&s_str, "");
 	}
-	args[0] = ptr[NAME_ERR_MESG__NAME];
+	args[0] = QUOTE(rb_obj_as_string(ptr[NAME_ERR_MESG__NAME]));
 	args[1] = d;
 	args[2] = s;
 	args[3] = c;