diff --git a/README.md b/README.md
index 718955d..7420158 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,6 @@ Using
 
 	class { '::phantomjs':
 		package_version => '1.9.7',
-		package_update => true,
 		install_dir => '/usr/local/bin',
 		source_dir => '/opt',
 		timeout => 300
diff --git a/manifests/init.pp b/manifests/init.pp
index 8b1c029..be57d15 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -4,7 +4,6 @@
   $source_url = undef,
   $source_dir = '/opt',
   $install_dir = '/usr/local/bin',
-  $package_update = false,
   $timeout = 300
 ) {
 
@@ -56,6 +55,14 @@
     default => $source_url,
   }
 
+  exec { 'remove phantomjs':
+    command => "/bin/rm -rf ${source_dir}/phantomjs",
+    onlyif  => [
+      "/usr/bin/test $(${install_dir}/phantomjs --version) != '${package_version}'",
+      "/usr/bin/test -d ${source_dir}/phantomjs"
+    ]
+  }
+
   exec { 'get phantomjs':
     command => "/usr/bin/curl --silent --show-error --fail --location ${pkg_src_url} --output ${source_dir}/phantomjs.tar.bz2 \
       && mkdir ${source_dir}/phantomjs \
@@ -65,16 +72,12 @@
     timeout => $timeout
   }
 
+  Exec['remove phantomjs'] ~> Exec[ 'get phantomjs' ]
+
   file { "${install_dir}/phantomjs":
     ensure => link,
     target => "${source_dir}/phantomjs/bin/phantomjs",
     force  => true,
   }
 
-  if $package_update {
-    exec { 'remove phantomjs':
-      command => "/bin/rm -rf ${source_dir}/phantomjs",
-      notify  => Exec[ 'get phantomjs' ]
-    }
-  }
 }