diff --git a/mathmech/PKGBUILD b/mathmech/PKGBUILD
index da2de23..a59da03 100644
--- a/mathmech/PKGBUILD
+++ b/mathmech/PKGBUILD
@@ -2,35 +2,38 @@
 # Maintainer: Evgeniy "arcanis" Alexeev <esalexeev@gmail.com>
 
 pkgname=mathmech
-pkgver=1.1.1
+pkgver=1.2.0
 pkgrel=1
 pkgdesc="Software package for analysis of molecular dynamics trajectories"
-arch=('i686' 'x86_64')
-url="https://github.com/arcan1s/moldyn"
-license=('GPL')
+arch=(any)
+url="http://arcan1s.github.io/projects/moldyn"
+license=('Beerware')
 depends=('qt4' 'qwt')
-makedepends=('automoc4' 'cmake')
+makedepends=('cmake' 'automoc4')
 source=(https://github.com/arcan1s/moldyn/releases/download/mm-${pkgver}/${pkgname}-${pkgver}-src.zip)
-md5sums=('6a7f3dd17ae4ad0498110aaaadea5a2b')
+md5sums=('f3f01c7eefdedf23b4eadfbf59058332')
 _cmakekeys="-DCMAKE_INSTALL_PREFIX=/usr
             -DQWT_INCLUDE_PATH=/usr/include/qwt
             -DQWT_LIBRARY_PATH=/usr/lib
             -DMM_PREFIX=mm_
             -DADD_DOCS:BOOL=0
+            -DADD_INCLUDE:BOOL=0
             -DCMAKE_BUILD_TYPE=Release"
 
-build ()
-{
-  if [[ -d ${srcdir}/build ]]; then
-    rm -rf "${srcdir}/build"
-  fi
-  mkdir "${srcdir}/build"; cd "${srcdir}/build"
+prepare() {
+  [[ -d ${srcdir}/build ]] && rm -rf "${srcdir}/build"
+  mkdir "${srcdir}/build"
+}
+
+build() {
+  cd "${srcdir}/build"
   cmake ${_cmakekeys} ../
   make
 }
 
-package()
-{
+package() {
   cd "${srcdir}/build"
   make DESTDIR="${pkgdir}" install
+  install -Dm644 "${srcdir}/COPYING" "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
 }
+