diff --git a/system/libraries/Form_validation.php b/system/libraries/Form_validation.php
index bb872c7..7599602 100644
--- a/system/libraries/Form_validation.php
+++ b/system/libraries/Form_validation.php
@@ -461,7 +461,7 @@
 			{
 				$this->_field_data[$field]['postdata'] = $this->_reduce_array($validation_array, $row['keys']);
 			}
-			elseif (isset($validation_array[$field]) && $validation_array[$field] !== '')
+			elseif (isset($validation_array[$field]))
 			{
 				$this->_field_data[$field]['postdata'] = $validation_array[$field];
 			}