diff --git a/app/views/dashboard/issues.atom.builder b/app/views/dashboard/issues.atom.builder
index 66381310221e021ff84e19003be1de89efbe0f63..72e9e361dc3d4f984b8cae48ff87e34baddf4650 100644
--- a/app/views/dashboard/issues.atom.builder
+++ b/app/views/dashboard/issues.atom.builder
@@ -1,5 +1,5 @@
 xml.instruct!
-xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlnsmedia" => "http://search.yahoo.com/mrss/" do
+xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlns:media" => "http://search.yahoo.com/mrss/" do
   xml.title   "#{current_user.name} issues"
   xml.link    href: issues_dashboard_url(:atom, private_token: current_user.private_token), rel: "self", type: "application/atom+xml"
   xml.link    href: issues_dashboard_url(private_token: current_user.private_token), rel: "alternate", type: "text/html"
diff --git a/app/views/dashboard/show.atom.builder b/app/views/dashboard/show.atom.builder
index 70ac66f80165fba16c6c69c8ea0dbcc99e75f934..da631ecb33e00f01a6f08002da08d78b8f47464c 100644
--- a/app/views/dashboard/show.atom.builder
+++ b/app/views/dashboard/show.atom.builder
@@ -1,5 +1,5 @@
 xml.instruct!
-xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlnsmedia" => "http://search.yahoo.com/mrss/" do
+xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlns:media" => "http://search.yahoo.com/mrss/" do
   xml.title   "Dashboard feed#{" - #{current_user.name}" if current_user.name.present?}"
   xml.link    href: dashboard_url(:atom), rel: "self", type: "application/atom+xml"
   xml.link    href: dashboard_url, rel: "alternate", type: "text/html"
diff --git a/app/views/groups/show.atom.builder b/app/views/groups/show.atom.builder
index e765ea8338d608f310ffbd8d48832d4b94df941c..c78bd1bd2637f2412f6f1f90a346ea86fe495e57 100644
--- a/app/views/groups/show.atom.builder
+++ b/app/views/groups/show.atom.builder
@@ -1,5 +1,5 @@
 xml.instruct!
-xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlnsmedia" => "http://search.yahoo.com/mrss/" do
+xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlns:media" => "http://search.yahoo.com/mrss/" do
   xml.title   "Group feed - #{@group.name}"
   xml.link    href: group_path(@group, :atom), rel: "self", type: "application/atom+xml"
   xml.link    href: group_path(@group), rel: "alternate", type: "text/html"
diff --git a/app/views/users/show.atom.builder b/app/views/users/show.atom.builder
index b7216a88765f4c44a78e1b801274c4bfbcd3c831..8fe30b23635fd58e414485a3a3510c36b135effe 100644
--- a/app/views/users/show.atom.builder
+++ b/app/views/users/show.atom.builder
@@ -1,5 +1,5 @@
 xml.instruct!
-xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlnsmedia" => "http://search.yahoo.com/mrss/" do
+xml.feed "xmlns" => "http://www.w3.org/2005/Atom", "xmlns:media" => "http://search.yahoo.com/mrss/" do
   xml.title   "Activity feed for #{@user.name}"
   xml.link    href: user_url(@user, :atom), rel: "self", type: "application/atom+xml"
   xml.link    href: user_url(@user), rel: "alternate", type: "text/html"