From 94a052d833de4d1914464639e0ef305d6ed5b4dc Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Thu, 11 Jun 2020 15:02:28 -0700
Subject: [PATCH] Fix parsing of rb_define_module_under

Fixes Ruby Bug #15819
---
 lib/rdoc/parser/c.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rdoc/parser/c.rb b/lib/rdoc/parser/c.rb
index 707a898975..deaef4dc79 100644
--- a/lib/rdoc/parser/c.rb
+++ b/lib/rdoc/parser/c.rb
@@ -318,7 +318,7 @@ def do_classes_and_modules
                 \s*"(?<module_name_1>\w+)"\s*
               \)
             |
-              _under\s*\( # rb_define_module_under(module_under, module_name_1)
+              _under\s*\( # rb_define_module_under(module_under, module_name_2)
                 \s*(?<module_under>\w+),
                 \s*"(?<module_name_2>\w+)"
               \s*\)