diff --git a/gnu/packages/emacs.scm b/gnu/packages/emacs.scm
index be4525c0e4..a2a1c5805c 100644
--- a/gnu/packages/emacs.scm
+++ b/gnu/packages/emacs.scm
@@ -2386,6 +2386,7 @@ the speedbar window.")
               (uri (git-reference
                     (commit "880706469338ab59b5bb7dbe8460016f89755364")
                     (url "https://github.com/gregsexton/ob-ipython.git")))
+              (file-name (string-append name "-" version "-checkout"))
               (sha256
                (base32
                 "1scf25snbds9ymagpny30ijbsg479r3nm0ih01dy4m9d0g7qryb7"))))