From f16c93e588e902ef0c942fa648de34ce86b7c213 Mon Sep 17 00:00:00 2001
From: Dominik Menke <dom@digineo.de>
Date: Mon, 29 Apr 2024 13:23:02 +0200
Subject: [PATCH] fix: address old-style-definition build error

---
 ext/visibility_monitor_c/ext.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/visibility_monitor_c/ext.c b/ext/visibility_monitor_c/ext.c
index 3964e7b..7a95a87 100644
--- a/ext/visibility_monitor_c/ext.c
+++ b/ext/visibility_monitor_c/ext.c
@@ -36,7 +36,7 @@ static VALUE monitor_set_visibility_placeholder(VALUE mod, VALUE method_name, VA
     return Qnil;
 }
 
-void Init_visibility_monitor_c() {
+void Init_visibility_monitor_c(void) {
     VALUE mVisibilityMonitor = rb_define_module("VisibilityMonitor");
 
     rb_define_method(mVisibilityMonitor, "public", monitor_public, -1);