diff --git a/README.textile b/README.textile
index 00a792a..1c1ef56 100644
--- a/README.textile
+++ b/README.textile
@@ -19,6 +19,8 @@ Git clones *wiz* from git://github.com/bippo/wiz.git
 Puts it in @/usr/share/wiz@
 And creates a symlink in @/usr/bin/wiz@
 
+Wiz is required by @magento@ to clear cache.
+
 
 h2. magento::app
 
diff --git a/manifests/init.pp b/manifests/init.pp
index e1c73dc..f5c0c45 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -123,6 +123,7 @@
     user        => $user,
     logoutput   => true,
     refreshonly => true,
+    require     => Class['magento::wiz'],
   }
 
   exec { "magento compiler-compile ${dir}":