diff --git a/code/DMSSiteTreeExtension.php b/code/DMSSiteTreeExtension.php
index 439fd0e..da015a7 100644
--- a/code/DMSSiteTreeExtension.php
+++ b/code/DMSSiteTreeExtension.php
@@ -76,4 +76,8 @@ class DMSSiteTreeExtension extends DataExtension {
 		}
 
 	}
+
+	function getTitleWithNumberOfDocuments() {
+		return $this->owner->Title . ' (' . $this->owner->Documents()->Count() . ')';
+	}
 }
\ No newline at end of file
diff --git a/code/cms/DMSDocumentAddExistingField.php b/code/cms/DMSDocumentAddExistingField.php
index 4146431..fd60a1f 100644
--- a/code/cms/DMSDocumentAddExistingField.php
+++ b/code/cms/DMSDocumentAddExistingField.php
@@ -4,8 +4,8 @@ class DMSDocumentAddExistingField extends CompositeField {
 	function __construct($name, $title = null) {
 		$this->name = $name;
 		$this->title = ($title === null) ? $name : $title;
-		
-		parent::__construct(new TreeDropdownField('PageSelector', 'Add from another page', 'SiteTree'));
+
+		parent::__construct(new TreeDropdownField('PageSelector', 'Add from another page', 'SiteTree', 'ID', 'TitleWithNumberOfDocuments'));
 	}
 
 	/**