diff --git a/manifests/ppa.pp b/manifests/ppa.pp
index 2a5b4a868d..b115f75390 100644
--- a/manifests/ppa.pp
+++ b/manifests/ppa.pp
@@ -40,7 +40,7 @@
   }
 
   # Validate the resource name
-  if $name !~ /^ppa:([a-zA-Z0-9\-_.]+)\/([a-zA-z0-9\-_\.]+)$/ {
+  if $name !~ /^ppa:([a-zA-Z0-9\-_.]+)\/([a-zA-z0-9\-_\.\+]+)$/ {
     fail("Invalid PPA name: ${name}")
   }
 
diff --git a/spec/defines/ppa_spec.rb b/spec/defines/ppa_spec.rb
index 00424dccb7..4faea5792a 100644
--- a/spec/defines/ppa_spec.rb
+++ b/spec/defines/ppa_spec.rb
@@ -49,6 +49,7 @@ def ppa_exec_params(user, repo, distro = 'trusty', environment = [])
     'ppa:foo/bar1.0',
     'ppa:foo10/bar10',
     'ppa:foo-/bar_',
+    'ppa:foo-/bar+',
   ].each do |value|
     describe 'valid resource names' do
       let :facts do