diff --git a/manifests/packages.pp b/manifests/packages.pp
index 2cc0f2ec..317b6104 100644
--- a/manifests/packages.pp
+++ b/manifests/packages.pp
@@ -15,12 +15,13 @@
 class php::packages (
   String $ensure         = $php::ensure,
   Boolean $manage_repos  = $php::manage_repos,
-  Array $names_to_prefix = prefix($php::params::common_package_suffixes, $php::package_prefix),
+  Array $names_to_prefix = $php::params::common_package_suffixes,
   Array $names           = $php::params::common_package_names,
 ) inherits php::params {
   assert_private()
 
-  $real_names = union($names, $names_to_prefix)
+  $names_with_prefix = prefix($names_to_prefix, $php::package_prefix)
+  $real_names = union($names, $names_with_prefix)
   if $facts['os']['family'] == 'Debian' {
     if $manage_repos {
       include apt