diff --git a/pkg.info b/pkg.info
index be2623b..2608e2a 100644
--- a/pkg.info
+++ b/pkg.info
@@ -1,9 +1,21 @@
 name: libsm
 description: X11 Session Management library
 version: 1.2.6
+revision: 2
 url: https://xorg.freedesktop.org/
 license: MIT,MIT-open-group
 architecture: any
-depends: ["glibc","libice","util-linux","xorgproto"]
-make_depends: ["xorg-util-macros","xtrans"]
 type: source
+depends:
+  - glibc
+  - libice
+  - util-linux
+  - xorgproto
+make_depends:
+  - xorg-util-macros
+  - xtrans
+downloads:
+  - url: https://www.x.org/pub/individual/lib/libSM-${BPM_PKG_VERSION}.tar.xz
+    extract_to: ${BPM_SOURCE}
+    extract_strip_components: 1
+    checksum: be7c0abdb15cbfd29ac62573c1c82e877f9d4047ad15321e7ea97d1e43d835be
diff --git a/source.sh b/source.sh
index 3a061af..740e07d 100644
--- a/source.sh
+++ b/source.sh
@@ -2,16 +2,6 @@
 # BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
 # BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT
 
-DOWNLOAD="https://www.x.org/pub/individual/lib/libSM-${BPM_PKG_VERSION}.tar.xz"
-FILENAME="${DOWNLOAD##*/}"
-
-# The prepare function is executed in the root of the temp directory
-# This function is used for downloading files and putting them into the correct location
-prepare() {
-  wget "$DOWNLOAD"
-  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"
-}
-
 # The build function is executed in the source directory
 # This function is used to compile the source code
 build() {
@@ -30,5 +20,6 @@ check() {
 package() {
   make DESTDIR="$BPM_OUTPUT" install
 
+  # Install package license
   install -Dm644 "$BPM_SOURCE"/COPYING "$BPM_OUTPUT"/usr/share/licenses/libsm/COPYING
 }