diff --git a/lib/portfoliolib.php b/lib/portfoliolib.php
index 69819c12a8e..b65596f34a5 100644
--- a/lib/portfoliolib.php
+++ b/lib/portfoliolib.php
@@ -200,7 +200,7 @@ function portfolio_add_button($callbackclass, $callbackargs, $callbackfile=null,
         $output .= "\n" . '<input type="hidden" name="instance" value="' . $instance->get('id') . '" />';
     }
     else {
-        $selectoutput = portfolio_instance_select($instances, $callersupports, $callbackclass, true);
+        $selectoutput = portfolio_instance_select($instances, $callersupports, $callbackclass, 'instance', true);
     }
 
     if ($fullform) {
diff --git a/portfolio/add.php b/portfolio/add.php
index 60a160f9f21..6aba09dbea4 100644
--- a/portfolio/add.php
+++ b/portfolio/add.php
@@ -110,7 +110,7 @@ if (!$exporter->get('instance')) {
     // for the next block to catch
     $form = '<form action="' . $CFG->wwwroot . '/portfolio/add.php" method="post">' . "\n";
 
-    if (!$select = portfolio_instance_select(portfolio_instances(), $exporter->get('caller')->supported_formats(), get_class($exporter->get('caller')), true)) {
+    if (!$select = portfolio_instance_select(portfolio_instances(), $exporter->get('caller')->supported_formats(), get_class($exporter->get('caller')), 'instance', true)) {
         print_error('noavailableplugins', 'portfolio');
     }
     $form .= $select;