diff --git a/utils.lisp b/utils.lisp
index d6994c3..5b8d59f 100644
--- a/utils.lisp
+++ b/utils.lisp
@@ -74,7 +74,7 @@ The current implementation replaces #\. and #\space with a #\-, and upcases all
     #-genera
     (string (if (or (search "http://"  source :end1 7) ;Until https://github.com/fukamachi/quri/issues/57 is fixed
 		    (search "https://" source :end1 8))
-		(dex:get source :want-stream t)
+		(dex:get source :want-stream t :keep-alive nil)
 		(make-string-input-stream source)))
     (stream source)
     (pathname (values (open source :external-format *default-external-format*)