diff --git a/PKGBUILD b/PKGBUILD
index 66f3c10..dbbc790 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -5,8 +5,8 @@
 pkgbase=linux               # Build stock -ARCH kernel
 #pkgbase=linux-custom       # Build kernel with a different name
 _srcname=linux-4.9
-pkgver=4.9
-pkgrel=2
+pkgver=4.9.1
+pkgrel=1
 arch=('i686' 'x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
@@ -14,8 +14,8 @@ makedepends=('xmlto' 'docbook-xsl' 'kmod' 'inetutils' 'bc' 'libelf')
 options=('!strip')
 source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         "https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.sign"
-        #"https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.xz"
-        #"https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.sign"
+        "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.xz"
+        "https://www.kernel.org/pub/linux/kernel/v4.x/patch-${pkgver}.sign"
         # the main kernel config files
         'config' 'config.x86_64'
         # pacman hook for initramfs regeneration
@@ -27,6 +27,8 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         )
 
 sha256sums=('029098dcffab74875e086ae970e3828456838da6e0ba22ce3f64ef764f3d7f1a'
+            'SKIP'
+            'db6dfd7c38a9b6a62052d7a60c6fc5818e07fb2d8fc758ba576e87a8b150e305'
             'SKIP'
             'b6aa460ed9e8461c8b431b9765f80dde978ae7f2ad3ef12c14f02d782db56a28'
             '087f6223290b5935c27ad736dd4958873942d6ad2f695486be1b5d9fd11db0c1'
@@ -45,7 +47,7 @@ prepare() {
   cd "${srcdir}/${_srcname}"
 
   # add upstream patch
-  #patch -p1 -i "${srcdir}/patch-${pkgver}"
+  patch -p1 -i "${srcdir}/patch-${pkgver}"
 
   # Revert a commit that causes memory corruption in i686 chroots on our
   # build server ("valgrind bash" immediately crashes)