diff --git a/src/functions.php b/src/functions.php
index 701d01c95..d61141eb5 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -142,7 +142,7 @@ function arguments ( $args ){
     array_shift( $args );
     $args = join( $args, ' ' );
 
-    preg_match_all('/ (--[\w\-]+ (?:[= ] [^-]+ [^\s-] )? ) | (-\w+) | (\w+) /x', $args, $match );
+    preg_match_all('/ (--[\w\-]+ (?:[= ] [^-\s]+ )? ) | (-\w+) | (\w+) /x', $args, $match );
     $args = array_shift( $match );
 
     $ret = array(