Fix #5050
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index ed44412..ef982fc 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -316,7 +316,7 @@
 	 */
 	protected function _escape_str($str)
 	{
-		$this->db->display_error('db_unsupported_feature');
+		$this->display_error('db_unsupported_feature');
 	}
 
 	// --------------------------------------------------------------------
@@ -340,7 +340,7 @@
 	 */
 	public function insert_id()
 	{
-		return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
+		return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE;
 	}
 
 	// --------------------------------------------------------------------