diff --git a/README.rst b/README.rst
index 96c9fc3..fa46470 100644
--- a/README.rst
+++ b/README.rst
@@ -83,7 +83,9 @@ Install
 
 Build and Install Using [Antigen](https:/github.com/zsh-users/antigen)
 --------
+
 Include the bundle in your ``.zshrc``
+
 ``antigen bundle thewtex/tmux-mem-cpu-load``
 
 Configuring tmux_
diff --git a/tmux-mem-cpu-load.plugin.zsh b/tmux-mem-cpu-load.plugin.zsh
index 2b03b22..a6f18cc 100644
--- a/tmux-mem-cpu-load.plugin.zsh
+++ b/tmux-mem-cpu-load.plugin.zsh
@@ -1,7 +1,10 @@
 # vim: tabstop=2 shiftwidth=2 expandtab textwidth=80 linebreak wrap
 
-pushd ${0:a:h} #Pushd to the directory where this file is located.
-cmake .
-make
-sudo make install
-popd
+if [ ! -s /usr/local/bin/tmux-mem-cpu-load ];
+then
+  pushd ${0:a:h} #Pushd to the directory where this plugin is located.
+  cmake .
+  make
+  sudo make install
+  popd
+fi