diff --git a/main/musl/0001-track-pthread-stack-guard-sizes.patch b/main/musl/0001-track-pthread-stack-guard-sizes.patch
index 41ba463bd586545ee29422a8b8f9118092704429..a16ddee1d8bcb7c2ecc37292f9d5ae53b95a5c92 100644
--- a/main/musl/0001-track-pthread-stack-guard-sizes.patch
+++ b/main/musl/0001-track-pthread-stack-guard-sizes.patch
@@ -1,4 +1,4 @@
-From 21845fbedb172de1e14946fcf4c517ebc4d12fc1 Mon Sep 17 00:00:00 2001
+From 120a64e043955ed7dec4e72fabc0ea5392bf2ad4 Mon Sep 17 00:00:00 2001
 From: William Pitcock <nenolod@dereferenced.org>
 Date: Sat, 6 Jan 2018 04:42:44 +0000
 Subject: [PATCH] track pthread stack guard sizes
@@ -6,26 +6,36 @@ Subject: [PATCH] track pthread stack guard sizes
 some applications (rustc) are dependent on pthread_getattr_np() providing the guard size.
 ---
  src/internal/pthread_impl.h     | 1 +
- src/thread/pthread_create.c     | 1 +
+ src/thread/pthread_create.c     | 3 ++-
  src/thread/pthread_getattr_np.c | 1 +
- 3 files changed, 3 insertions(+)
+ 3 files changed, 4 insertions(+), 1 deletion(-)
 
 diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
-index 56e19348..c2cafeaa 100644
+index f0b2c20c..4a0db987 100644
 --- a/src/internal/pthread_impl.h
 +++ b/src/internal/pthread_impl.h
-@@ -48,6 +48,7 @@ struct pthread {
+@@ -46,6 +46,7 @@ struct pthread {
+ 	char *dlerror_buf;
+ 	int dlerror_flag;
  	void *stdio_locks;
 +	size_t guard_size;
  	uintptr_t canary_at_end;
  	void **dtv_copy;
  };
- 
- struct __timer {
 diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c
-index 6cbf85b3..0faad765 100644
+index 34cd9936..439ee363 100644
 --- a/src/thread/pthread_create.c
 +++ b/src/thread/pthread_create.c
+@@ -232,8 +232,8 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
+ 			memset(stack, 0, need);
+ 		} else {
+ 			size = ROUND(need);
+-			guard = 0;
+ 		}
++		guard = 0;
+ 	} else {
+ 		guard = ROUND(attr._a_guardsize);
+ 		size = guard + ROUND(attr._a_stacksize
 @@ -265,6 +265,7 @@ int __pthread_create(pthread_t *restrict res, const pthread_attr_t *restrict att
  	new->map_size = size;
  	new->stack = stack;
@@ -47,5 +57,5 @@ index ae26a5ab..29a209bd 100644
  		a->_a_stackaddr = (uintptr_t)t->stack;
  		a->_a_stacksize = t->stack_size;
 -- 
-2.15.0
+2.16.1
 
diff --git a/main/musl/APKBUILD b/main/musl/APKBUILD
index 46e83dd629f6a9fd23c9fd9ac926f3ef386c51cd..643175dc26113b937bcb5fa07ba08a5bdec88d49 100644
--- a/main/musl/APKBUILD
+++ b/main/musl/APKBUILD
@@ -2,7 +2,7 @@
 # Maintainer: Timo Teräs <timo.teras@iki.fi>
 pkgname=musl
 pkgver=1.1.18
-pkgrel=5
+pkgrel=6
 pkgdesc="the musl c library (libc) implementation"
 url="http://www.musl-libc.org/"
 arch="all"
@@ -149,7 +149,7 @@ compat() {
 sha512sums="4d55c92efe41dfdd9fff6aca5dda76a632a3be60d10e5a7f66a4731d8f7040fb0a20b998965ba4d069b4f8a3527fcd7388e646cb66afc649c4d0cc6c3d358c9c  musl-1.1.18.tar.gz
 7b44cc006d37672a67bc261de33e64d11f6426fd1ab3ff80f9f980aefc8e0b099ab61f95d110eeb59f75c2fe772fe13bc5546c194c3f90ca9ec4c812dfff6b1b  0001-fix-sysconf-for-infinite-rlimits.patch
 c28abac671f531d200bd1ebc934fc57b1c04404e49237dd6cfde4fe72e4fd8b855df0e75f76d62ec930c56daa00a12a6a3b3bb1c86576c7504fdf9628ad58975  0001-use-the-name-UTC-instead-of-GMT-for-UTC-timezone.patch
-2012f7d977c6765ff18bf346315d8e460b41c84053e0ac415d7c62b196422ab1ec4cc7c62aed13acf5c6c2447971bd5748827f40b5bef58fbd206c6697e750b9  0001-track-pthread-stack-guard-sizes.patch
+455ad7f2d7c32af536d47c9fcfbfcb259aceb07c461b8c0bb26466b2210ea58e343f3b3e34c50bb945da9206866c6fc70b6aa73402c06b558abba8108b3ce630  0001-track-pthread-stack-guard-sizes.patch
 7e4c703e57a3564cd3ee1d5334b806cbe654355179ba55d4d25361dfc555eb4a7d081d80d64fdaff8476949afd04558d278b124d1fb108080beaa5ba2f8ce2b9  1000-implement-strftime-GNU-extension-padding-specifiers-.patch
 2c8e1dde1834238097b2ee8a7bfb53471a0d9cff4a5e38b55f048b567deff1cdd47c170d0578a67b1a039f95a6c5fbb8cff369c75b6a3e4d7ed171e8e86ebb8c  2000-pthread-internals-increase-DEFAULT_GUARD_SIZE-to-2-p.patch
 bdc6fe197779088507d6f8bb72560239f908a635b39eb677bfcf91da28b92ee52b67696e627dad08ccb8a7dcaf7a72b574276098fb3fddd4a6b646a0f0799785  3002-stdio-implement-fopencookie-3.patch