diff --git a/manifests/init.pp b/manifests/init.pp
index 6fa172d..8b3f0ae 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -6,10 +6,28 @@
     }
   }
 
-  package { 'libssl-dev':
-    ensure => present,
+
+  case $operatingsystem {
+    centos, redhat: {
+      $libssl_dev_pkgname = 'openssl-devel'
+      exec { 'yum Group Install':
+        unless  => '/usr/bin/yum grouplist "Development tools" | /bin/grep "^Installed Groups"',
+        command => '/usr/bin/yum -y groupinstall "Development tools"',
+        before => Exec['nave']
+      }
+    }
+    debian, ubuntu: {
+      $libssl_dev_pkgname = 'libssl-dev'
+      package { 'build-essential':
+        ensure => present,
+        before => Exec['nave']
+      }
+    }
+    default: { fail("Unrecognized operating system for webserver") }
   }
-  package { 'build-essential':
+
+  package { 'libssl-dev':
+    name   => $libssl_dev_pkgname,
     ensure => present,
   }
 
@@ -17,7 +35,7 @@
   exec { 'nave' :
     command     => "bash -c \"\$(curl -s 'https://raw.github.com/isaacs/nave/master/nave.sh') usemain $version \"",
     path        => [ "/usr/local/bin", "/bin" , "/usr/bin" ],
-    require     => [ Package[ 'curl' ], Package[ 'libssl-dev' ], Package[ 'build-essential' ] ],
+    require     => [ Package[ 'curl' ], Package[ 'libssl-dev' ] ],
     environment => [ 'HOME=""', 'PREFIX=/usr/local/lib/node', 'NAVE_JOBS=1' ],
     logoutput   => $logoutput,
     # btw, this takes forever....
@@ -26,4 +44,3 @@
   }
 
 }
-