diff --git a/INSTALL.md b/INSTALL.md
index 718034e83..e94510b1a 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -115,23 +115,23 @@ The following steps assumes that you cloned the repository at "/home/user/qTox".
 
 Debian:
 ```bash
-sudo apt-get install build-essential qt5-qmake qt5-default libopenal-dev libopencv-dev
+sudo apt-get install build-essential qt5-qmake qt5-default libopenal-dev libopencv-dev libxss-dev
 ```
 
 Ubuntu:
 ```bash
-sudo apt-get install build-essential qt5-qmake qt5-default qttools5-dev-tools libopenal-dev libopencv-dev
+sudo apt-get install build-essential qt5-qmake qt5-default qttools5-dev-tools libopenal-dev libopencv-dev libxss-dev
 ```
 
 Arch Linux:
 ```bash
-sudo pacman -S --needed base-devel qt5 opencv openal
+sudo pacman -S --needed base-devel qt5 opencv openal libxss
 ```
 
 Fedora:
 ```bash
 yum groupinstall "Development Tools"
-yum install qt-devel qt-doc qt-creator opencv-devel openal-soft-devel
+yum install qt-devel qt-doc qt-creator opencv-devel openal-soft-devel libXScrnSaver-devel
 ```
 
 ###Tox Core
diff --git a/simple_make.sh b/simple_make.sh
index 35b1c6b8a..23a8682ac 100755
--- a/simple_make.sh
+++ b/simple_make.sh
@@ -2,12 +2,12 @@
 
 if which apt-get; then
     sudo apt-get install build-essential qt5-qmake qt5-default libopenal-dev libopencv-dev \
-                         libtool autotools-dev automake checkinstall check libopus-dev libvpx-dev qttools5-dev-tools qtchooser
+                         libtool autotools-dev automake checkinstall check libopus-dev libvpx-dev qttools5-dev-tools qtchooser libxss-dev
 elif which pacman; then
-    sudo pacman -S --needed base-devel qt5 opencv openal opus libvpx
+    sudo pacman -S --needed base-devel qt5 opencv openal opus libvpx libxss
 elif which yum; then
     yum groupinstall "Development Tools"
-    yum install qt-devel qt-doc qt-creator opencv-devel openal-soft-devel libtool autoconf automake check check-devel
+    yum install qt-devel qt-doc qt-creator opencv-devel openal-soft-devel libtool autoconf automake check check-devel libXScrnSaver-devel
 else
     echo "Unknown package manager, attempting to compile anyways"
 fi
diff --git a/src/platform/timer_x11.cpp b/src/platform/timer_x11.cpp
index 9d01adb41..5c9ac1b20 100644
--- a/src/platform/timer_x11.cpp
+++ b/src/platform/timer_x11.cpp
@@ -15,7 +15,7 @@
 */
 
 #include <QDebug>
-#ifdef Q_OS_UNIX
+#if defined(Q_OS_UNIX) && !defined(__APPLE__) && !defined(__MACH__)
 #include "src/platform/timer.h"
 #include <X11/extensions/scrnsaver.h>