diff --git a/community/supercollider/PKGBUILD b/community/supercollider/PKGBUILD
index 1ed4bb212..b03a916ce 100644
--- a/community/supercollider/PKGBUILD
+++ b/community/supercollider/PKGBUILD
@@ -9,23 +9,27 @@
 _name=SuperCollider
 pkgname=supercollider
 pkgver=3.9.3
-pkgrel=1
-pkgdesc="An environment and programming language for real time audio synthesis and algorithmic composition"
+pkgrel=3
+pkgdesc="Environment and programming language for real time audio synthesis and algorithmic composition"
 arch=('x86_64')
 url="https://supercollider.github.io"
 license=('GPL3')
+groups=('pro-audio')
 depends=('boost-libs' 'fftw' 'jack' 'qt5-webkit' 'yaml-cpp')
 makedepends=('boost' 'cmake' 'emacs' 'qt5-tools')
 optdepends=('emacs: emacs interface'
             'gedit: gedit interface'
             'sc3-plugins: additional extension plugins for scsynth')
-source=("https://github.com/${pkgname}/${pkgname}/releases/download/Version-${pkgver}/${_name}-${pkgver}-Source-linux.tar.bz2")
+source=("https://github.com/${pkgname}/${pkgname}/releases/download/Version-${pkgver}/${_name}-${pkgver}-Source-linux.tar.bz2"
+        'boost-1.67.patch')
 install="${pkgname}.install"
-sha512sums=('5b0c29941907d5ca45c1676e34184664c03891051bba0ee50d9e8311400824054de7b6daba6d29fd875ff38f42ee9654504ea2f0b5bf0a36ae9605e6a79a0841')
+sha512sums=('5b0c29941907d5ca45c1676e34184664c03891051bba0ee50d9e8311400824054de7b6daba6d29fd875ff38f42ee9654504ea2f0b5bf0a36ae9605e6a79a0841'
+            '9980d77802f18fd56d2a13f24f070e81768d9111b2cc63e479a0e9b405a04aec28bc523e5d36aab0462af6a3831d64598470cdc6c3266431e2ca64aa427a6bf2')
 
 prepare() {
   mv -v "${_name}-Source" "${pkgname}-${pkgver}"
   cd "${pkgname}-${pkgver}"
+  patch -Np1 -i ../boost-1.67.patch
   # requires out-of-tree build
   mkdir -v bld
 }
diff --git a/community/supercollider/boost-1.67.patch b/community/supercollider/boost-1.67.patch
new file mode 100644
index 000000000..1d1abaf91
--- /dev/null
+++ b/community/supercollider/boost-1.67.patch
@@ -0,0 +1,12 @@
+diff -upr supercollider-3.9.3.orig/server/supernova/utilities/time_tag.hpp supercollider-3.9.3/server/supernova/utilities/time_tag.hpp
+--- supercollider-3.9.3.orig/server/supernova/utilities/time_tag.hpp	2018-03-28 23:05:07.000000000 +0300
++++ supercollider-3.9.3/server/supernova/utilities/time_tag.hpp	2018-06-03 01:32:16.824417338 +0300
+@@ -230,7 +230,7 @@ public:
+ #ifdef BOOST_DATE_TIME_POSIX_TIME_STD_CONFIG
+         time_duration offset = seconds(get_secs() - ntp_offset) + nanoseconds(get_nanoseconds());
+ #else
+-        time_duration offset = seconds(get_secs() - ntp_offset) + microseconds(get_nanoseconds()/1000);
++        time_duration offset = seconds(get_secs() - ntp_offset) + microseconds(long(get_nanoseconds()/1000));
+ #endif
+         return ptime(base, offset);
+     }