diff --git a/manifests/puppetlabs_apt.pp b/manifests/puppetlabs_apt.pp
index 17abb3c..30c8937 100644
--- a/manifests/puppetlabs_apt.pp
+++ b/manifests/puppetlabs_apt.pp
@@ -3,6 +3,6 @@ class puppet::puppetlabs_apt ($ensure = 'present') {
     ensure   => $ensure,
     key      => '4BD6EC30',
     location => 'http://apt.puppetlabs.com',
-    repos    => ['main', 'dependencies'],
+    repos    => 'main dependencies',
   }
 }