diff --git a/libraries/joomla/filter/input.php b/libraries/joomla/filter/input.php
index 82dd8908c89b9..663b6bdfd3d24 100644
--- a/libraries/joomla/filter/input.php
+++ b/libraries/joomla/filter/input.php
@@ -192,7 +192,7 @@ public function clean($source, $type = 'string')
 				break;
 			case 'FLOAT':
 			case 'DOUBLE':
-				$pattern = '/[-+]?[0-9]+(\.[0-9]+)?([eE][-+]?[0-9]+)?/';
+				$pattern = '/[-+]?[0-9]*(\.[0-9]+)?([eE][-+]?[0-9]+)?/';
 
 				if (is_array($source))
 				{