diff --git a/apache/manifests/init.pp b/apache/manifests/init.pp
index 83025d2..6ad497d 100644
--- a/apache/manifests/init.pp
+++ b/apache/manifests/init.pp
@@ -503,6 +503,46 @@ class apache::mod::ldap {
 }
 
 
+# Install mod_passenger.
+#
+class apache::mod::passenger {
+
+    package { "mod_passenger":
+        name    => $::operatingsystem ? {
+            debian  => "libapache2-mod-passenger",
+            ubuntu  => "libapache2-mod-passenger",
+            default => "mod_passenger",
+        },
+        ensure  => installed,
+        require => Package["httpd"],
+    }
+
+    case $::operatingsystem {
+        "debian","ubuntu": {
+            apache::debian::a2enmod { "passenger":
+                require => Package ["libapache2-mod-passenger"],
+            }
+        }
+        "centos","redhat","fedora": {
+            apache::configfile { "passenger.conf":
+                require => Package["mod_passenger"],
+            }
+        }
+        default: {
+            fail("Apache module not supported in ${::operatingsystem}.")
+        }
+    }
+
+    file { "/var/lib/passenger":
+        ensure => directory,
+        mode   => "0755",
+        owner  => "root",
+        group  => "root",
+    }
+
+}
+
+
 # Install mod_perl.
 #
 class apache::mod::perl {