diff --git a/PKGBUILD b/PKGBUILD
index 55339e3..77e07d8 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Ettore Chimenti <ek5.chimenti @ gmail.com>
 pkgname="init-headphone"
 pkgver="0.2.0"
-pkgrel=2
+pkgrel=3
 epoch=
 pkgdesc="Re-enables headphone jack after sleep/suspend resume on Clevo W230SS"
 arch=("any")
@@ -15,7 +15,7 @@ source=("https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1313904/+att
 noextract=()
 md5sums=('37c830340c4ca077271a04b4436ea8fc'
          'ad3ad6f4c9157035fd7a9dd2e82184c2'
-         'a47855a948f9684ea69db75f2cdd7398')
+         '81b2f5e44cd18753e64a084eaff563b5')
 validpgpkeys=()
 
 package() {
diff --git a/README.md b/README.md
index e0f271a..0b393ac 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,12 @@
 PKGBUILD for init-headphone
 
 Re-enables headphone jack after sleep/suspend resume on Clevo W230SS
+
+## Credits
+
+Unrud
+
+### Sources and discussions: 
+- https://bugzilla.kernel.org/show_bug.cgi?id=75151 
+- https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1313904/
+