Index: class.wp-dependencies.php
===================================================================
--- class.wp-dependencies.php	(revision 20792)
+++ class.wp-dependencies.php	(working copy)
@@ -245,7 +245,9 @@
 
 	function __construct() {
 		@list($this->handle, $this->src, $this->deps, $this->ver, $this->args) = func_get_args();
-		if ( !is_array($this->deps) )
+		if ( is_string( $this->deps ) )
+			$this->deps = (array) $this->deps;
+		elseif ( !is_array( $this->deps ) )
 			$this->deps = array();
 	}