diff --git a/application/controllers/Attributes.php b/application/controllers/Attributes.php
index a48218233..d93a0f094 100644
--- a/application/controllers/Attributes.php
+++ b/application/controllers/Attributes.php
@@ -56,7 +56,7 @@ class Attributes extends Secure_Controller
 		echo json_encode(array('success' => $success));
 	}
 
-	public function save_definition($definition_id = -1)
+	public function save_definition($definition_id = 0)
 	{
 		$definition_flags = 0;
 
diff --git a/application/controllers/Config.php b/application/controllers/Config.php
index 2bd395b49..f7df8e623 100644
--- a/application/controllers/Config.php
+++ b/application/controllers/Config.php
@@ -299,7 +299,22 @@ class Config extends Secure_Controller
 		);
 
 		$this->Module->set_show_office_group($this->input->post('show_office_group') != NULL);
-		
+
+		if($batch_save_data['category_dropdown'] == 1)
+		{
+			$definition_data['definition_name'] = 'ospos_category';
+			$definition_data['definition_flags'] = 0;
+			$definition_data['definition_type'] = 'DROPDOWN';
+			$definition_data['definition_id'] = -1;
+			$definition_data['deleted'] = 0;
+
+			$this->Attribute->save_definition($definition_data, -1);
+		}
+		else if($batch_save_data['category_dropdown'] == 0)
+		{
+			$this->Attribute->delete_definition(-1);
+		}
+
 		$result = $this->Appconfig->batch_save($batch_save_data);
 		$success = $result ? TRUE : FALSE;
 
diff --git a/application/models/Attribute.php b/application/models/Attribute.php
index 45575b699..03e8dc7be 100644
--- a/application/models/Attribute.php
+++ b/application/models/Attribute.php
@@ -418,16 +418,23 @@ class Attribute extends CI_Model
 	/*
 	 Inserts or updates a definition
 	 */
-	public function save_definition(&$definition_data, $definition_id = -1)
+	public function save_definition(&$definition_data, $definition_id = 0)
 	{
 	//Run these queries as a transaction, we want to make sure we do all or nothing
 		$this->db->trans_start();
 
 	//Definition doesn't exist
-		if($definition_id === -1 || !$this->exists($definition_id))
+		if($definition_id === 0 || !$this->exists($definition_id))
 		{
-			$success = $this->db->insert('attribute_definitions', $definition_data);
-			$definition_data['definition_id'] = $this->db->insert_id();
+			if($this->exists($definition_id,TRUE))
+			{
+				$success = $this->undelete($definition_id);
+			}
+			else
+			{
+				$success = $this->db->insert('attribute_definitions', $definition_data);
+				$definition_data['definition_id'] = $this->db->insert_id();
+			}
 		}
 
 	//Definition already exists
@@ -667,4 +674,14 @@ class Attribute extends CI_Model
 
 		return $this->db->update('attribute_definitions', array('deleted' => 1));
 	}
+
+	/*
+	Undeletes one attribute definition
+	*/
+	public function undelete($definition_id)
+	{
+		$this->db->where('definition_id', $definition_id);
+
+		return $this->db->update('attribute_definitions', array('deleted'=>0));
+	}
 }