diff --git a/apt/manifests/init.pp b/apt/manifests/init.pp
index 67c124e..7d21074 100644
--- a/apt/manifests/init.pp
+++ b/apt/manifests/init.pp
@@ -47,7 +47,7 @@ define apt::ppa($ensure = "present") {
 
     include apt
     include apt::ppa::helper
-    $fname = regsubst($name, "^ppa:([^\/]+)\/(.+)", "\\1-\\2-${lsbdistcodename}.list")
+    $fname = regsubst($name, "^ppa:([^/]+)/(.+)", "\\1-\\2-${::lsbdistcodename}.list")
 
     case $ensure {
         "present": {