diff --git a/lib/puma/daemon_ext.rb b/lib/puma/daemon_ext.rb
deleted file mode 100644
index 859a030204..0000000000
--- a/lib/puma/daemon_ext.rb
+++ /dev/null
@@ -1,33 +0,0 @@
-# frozen_string_literal: true
-
-module Process
-
-  # This overrides the default version because it is broken if it
-  # exists.
-
-  if respond_to? :daemon
-    class << self
-      remove_method :daemon
-    end
-  end
-
-  def self.daemon(nochdir=false, noclose=false)
-    exit if fork                     # Parent exits, child continues.
-
-    Process.setsid                   # Become session leader.
-
-    exit if fork                     # Zap session leader. See [1].
-
-    Dir.chdir "/" unless nochdir     # Release old working directory.
-
-    if !noclose
-      STDIN.reopen File.open("/dev/null", "r")
-
-      null_out = File.open "/dev/null", "w"
-      STDOUT.reopen null_out
-      STDERR.reopen null_out
-    end
-
-    0
-  end
-end