diff --git a/lang/en_utf8/portfolio.php b/lang/en_utf8/portfolio.php
index 58f63de096e..bff3bdc8b51 100644
--- a/lang/en_utf8/portfolio.php
+++ b/lang/en_utf8/portfolio.php
@@ -95,7 +95,7 @@ $string['moderatefilesizethreshold'] = 'Moderate transfer filesize';
 $string['moderatefilesizethresholddesc'] = 'Filesizes over this threshold will be considered to take a moderate amount of time to transfer';
 $string['moderatedbsizethreshold'] = 'Moderate transfer dbsize';
 $string['moderatedbsizethresholddesc'] = 'Number of db records over which will be considered to take a moderate amount of time to transfer';
-$string['multipledisallowed'] = 'Trying to create another instance of a plugin that has disallowed multiple instances ($a)';
+$string['multipleinstancesdisallowed'] = 'Trying to create another instance of a plugin that has disallowed multiple instances ($a)';
 $string['mustsetcallbackoptions'] = 'You must set the callback options either in the portfolio_add_button constructor or using the set_callback_options method';
 $string['noavailableplugins'] = 'Sorry, but there are no available portfolios for you to export to';
 $string['nocallbackfile'] = 'Something in the module you\'re trying to export from is broken - couldn\'t find a required file ($a)';
diff --git a/lib/adminlib.php b/lib/adminlib.php
index 5e0562987f3..e9bb4a4167d 100644
--- a/lib/adminlib.php
+++ b/lib/adminlib.php
@@ -5142,7 +5142,7 @@ class admin_setting_manageportfolio extends admin_setting {
         $instancehtml = '<br /><br />' . get_string('addnewportfolio', 'portfolio') . ': <br /><br />';
         $addable = 0;
         foreach ($plugins as $p) {
-            if (!portfolio_static_function($p, 'allows_multiple') && in_array($p, $alreadyplugins)) {
+            if (!portfolio_static_function($p, 'allows_multiple_instances') && in_array($p, $alreadyplugins)) {
                 continue;
             }
             if (array_key_exists($p, $insane)) {
diff --git a/lib/portfolio/plugin.php b/lib/portfolio/plugin.php
index 44c1cb50856..10679ea96a3 100644
--- a/lib/portfolio/plugin.php
+++ b/lib/portfolio/plugin.php
@@ -378,7 +378,7 @@ abstract class portfolio_plugin_base {
     *
     * @return boolean
     */
-    public static function allows_multiple() {
+    public static function allows_multiple_instances() {
         return true;
     }
 
@@ -436,10 +436,10 @@ abstract class portfolio_plugin_base {
             'plugin' => $plugin,
             'name'   => $name,
         );
-        if (!portfolio_static_function($plugin, 'allows_multiple')) {
+        if (!portfolio_static_function($plugin, 'allows_multiple_instances')) {
             // check we don't have one already
             if ($DB->record_exists('portfolio_instance', array('plugin' => $plugin))) {
-                throw new portfolio_exception('multipledisallowed', 'portfolio', '', $plugin);
+                throw new portfolio_exception('multipleinstancesdisallowed', 'portfolio', '', $plugin);
             }
         }
         $newid = $DB->insert_record('portfolio_instance', $new);
diff --git a/portfolio/type/boxnet/lib.php b/portfolio/type/boxnet/lib.php
index 0763c9f525d..f03278c4190 100644
--- a/portfolio/type/boxnet/lib.php
+++ b/portfolio/type/boxnet/lib.php
@@ -240,7 +240,7 @@ class portfolio_plugin_boxnet extends portfolio_plugin_push_base {
     //@TODO see if we can verify the api key without actually getting an authentication token
     }
 
-    public static function allows_multiple() {
+    public static function allows_multiple_instances() {
         return false;
     }
 
diff --git a/portfolio/type/download/lib.php b/portfolio/type/download/lib.php
index 10978f6e389..1f175c952bc 100644
--- a/portfolio/type/download/lib.php
+++ b/portfolio/type/download/lib.php
@@ -10,7 +10,7 @@ class portfolio_plugin_download extends portfolio_plugin_pull_base {
         return get_string('pluginname', 'portfolio_download');
     }
 
-    public static function allows_multiple() {
+    public static function allows_multiple_instances() {
         return false;
     }
 
diff --git a/portfolio/type/flickr/lib.php b/portfolio/type/flickr/lib.php
index dff7aaa08be..2ce4df1817f 100755
--- a/portfolio/type/flickr/lib.php
+++ b/portfolio/type/flickr/lib.php
@@ -51,7 +51,7 @@ class portfolio_plugin_flickr extends portfolio_plugin_push_base {
         }
     }
 
-    public static function allows_multiple() {
+    public static function allows_multiple_instances() {
         return false;
     }