diff --git a/perl-threads.t-timeout.diff b/perl-threads.t-timeout.diff
deleted file mode 100644
index ff2d6c4..0000000
--- a/perl-threads.t-timeout.diff
+++ /dev/null
@@ -1,26 +0,0 @@
-From 83d6f158711260fab9a16e49203c65f2ba4fb00e Mon Sep 17 00:00:00 2001
-From: Father Chrysostomos <sprout@cpan.org>
-Date: Sun, 5 Jan 2014 16:20:58 -0800
-Subject: [PATCH] threads.t: Increase watchdog timeout
-
-PERL_DEBUG_READONLY_COW is too slow for a 60s timeout.
----
- t/op/threads.t | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/t/op/threads.t b/t/op/threads.t
-index 61889a9..6fb2410 100644
---- a/t/op/threads.t
-+++ b/t/op/threads.t
-@@ -135,7 +135,7 @@ EOI
- #
- # run-time usage of newCONSTSUB (as done by the IO boot code) wasn't
- # thread-safe - got occasional coredumps or malloc corruption
--watchdog(60, "process");
-+watchdog(180, "process");
- {
-     local $SIG{__WARN__} = sub {};   # Ignore any thread creation failure warnings
-     my @t;
--- 
-1.8.5.2
-