diff -bu WebService-Dropbox-1.17-LKXBxu/lib/WebService/Dropbox.pm~ WebService-Dropbox-1.17-LKXBxu/lib/WebService/Dropbox.pm
--- WebService-Dropbox-1.17-LKXBxu/lib/WebService/Dropbox.pm~	2013-02-07 02:34:56.000000000 -0600
+++ WebService-Dropbox-1.17-LKXBxu/lib/WebService/Dropbox.pm	2013-07-23 12:43:43.697273222 -0500
@@ -185,7 +185,7 @@
                 $path, {
                     upload_id => $data->{upload_id},
                     ( $params ? %$params : () )
-                }, $opts) or die $self->error;
+                }, $opts) || die $self->error;
         }
 
         $tmp->flush;