diff --git a/abusehelper/manifests/init.pp b/abusehelper/manifests/init.pp
index 0fd5b13..b7c16c5 100644
--- a/abusehelper/manifests/init.pp
+++ b/abusehelper/manifests/init.pp
@@ -8,8 +8,8 @@ class abusehelper {
 
     include svn::client
     svn::export { "/usr/local/src/abusehelper":
-        source   => "http://abusehelper.googlecode.com/svn/trunk",
-        revision => $abusehelper_revision,
+        source => "http://abusehelper.googlecode.com/svn/trunk",
+        ensure => $abusehelper_revision,
     }
 
     python::setup::install { "/usr/local/src/abusehelper":
diff --git a/svn/manifests/init.pp b/svn/manifests/init.pp
index 39267cf..e501252 100644
--- a/svn/manifests/init.pp
+++ b/svn/manifests/init.pp
@@ -26,21 +26,21 @@ class svn::client {
 #       Destination directory.
 #   $source:
 #       Source URL.
-#   $revision:
+#   $ensure:
 #       Revision. Defaults to HEAD.
 #
 # === Sample usage
 #
 # svn::checkout { "/usr/local/src/graphingwiki":
-#     source   => "http://svn.graphingwiki.webfactional.com/trunk",
-#     revision => "1959",
+#     source => "http://svn.graphingwiki.webfactional.com/trunk",
+#     ensure => "1959",
 # }
 #
-define svn::checkout($source, $revision="HEAD") {
+define svn::checkout($source, $ensure="HEAD") {
 
     exec { "svn-co-${name}":
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
-        command => "svn checkout --non-interactive -r ${revision} ${source} ${name}",
+        command => "svn checkout --non-interactive -r ${ensure} ${source} ${name}",
         unless  => "test -d ${name}",
         require => [ Package["subversion"], File["/etc/subversion/servers"], ],
     }
@@ -48,10 +48,10 @@ define svn::checkout($source, $revision="HEAD") {
     exec { "svn-up-${name}":
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
         cwd     => "${name}",
-        command => "svn update --non-interactive -r ${revision}",
-        onlyif  => $revision ? {
+        command => "svn update --non-interactive -r ${ensure}",
+        onlyif  => $ensure ? {
             "HEAD"  => "svn status --non-interactive -q -u 2>&1 | egrep '^[[:space:]]+\\*'",
-            default => "test $(svn info --non-interactive 2>&1 | awk '/^Revision:/ { print \$2 }') != ${revision}",
+            default => "test $(svn info --non-interactive 2>&1 | awk '/^Revision:/ { print \$2 }') != ${ensure}",
         },
         require => Exec["svn-co-${name}"],
     }
@@ -67,31 +67,31 @@ define svn::checkout($source, $revision="HEAD") {
 #       Destination directory.
 #   $source:
 #       Source URL.
-#   $revision:
+#   $ensure:
 #       Revision. Defaults to HEAD.
 #
 # === Sample usage
 #
 # svn::export { "/usr/local/src/graphingwiki":
-#     source   => "http://svn.graphingwiki.webfactional.com/trunk/graphingwiki",
-#     revision => "1959",
+#     source => "http://svn.graphingwiki.webfactional.com/trunk/graphingwiki",
+#     ensure => "1959",
 # }
 #
-define svn::export($source, $revision="HEAD") {
+define svn::export($source, $ensure="HEAD") {
 
     exec { "svn-export-clean-${name}":
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
         command => "rm -fr ${name}",
-        onlyif  => $revision ? {
+        onlyif  => $ensure ? {
             "HEAD"  => "test -r ${name}/.svnrevision && test $(svn info --non-interactive ${source} 2>&1 | awk '/^Last Changed Rev:/ { print \$4 }') != $(cat ${name}/.svnrevision)",
-            default => "test -r ${name}/.svnrevision && test ${revision} != $(cat ${name}/.svnrevision)",
+            default => "test -r ${name}/.svnrevision && test ${ensure} != $(cat ${name}/.svnrevision)",
         },
         require => [ Package["subversion"], File["/etc/subversion/servers"], ],
     }
 
     exec { "svn-export-${name}":
         path    => "/bin:/usr/bin:/sbin:/usr/sbin",
-        command => "svn export --non-interactive -r ${revision} ${source} ${name} && svn info --non-interactive -r ${revision} ${source} 2>&1 | awk '/^Last Changed Rev:/ { print \$4 }' > ${name}/.svnrevision",
+        command => "svn export --non-interactive -r ${ensure} ${source} ${name} && svn info --non-interactive -r ${ensure} ${source} 2>&1 | awk '/^Last Changed Rev:/ { print \$4 }' > ${name}/.svnrevision",
         creates => "${name}",
         require => Exec["svn-export-clean-${name}"],
     }
diff --git a/wiki/manifests/init.pp b/wiki/manifests/init.pp
index 9f74928..3e41f73 100644
--- a/wiki/manifests/init.pp
+++ b/wiki/manifests/init.pp
@@ -42,8 +42,8 @@ class wiki::graphingwiki::common {
 
     include svn::client
     svn::export { "/usr/local/src/graphingwiki":
-        source   => "http://svn.graphingwiki.webfactional.com/trunk",
-        revision => $wiki_gwiki_revision,
+        source => "http://svn.graphingwiki.webfactional.com/trunk",
+        ensure => $wiki_gwiki_revision,
     }
 
 }