diff --git a/gnu/packages/emacs-xyz.scm b/gnu/packages/emacs-xyz.scm
index 9faddc3742..830f85d477 100644
--- a/gnu/packages/emacs-xyz.scm
+++ b/gnu/packages/emacs-xyz.scm
@@ -9934,7 +9934,7 @@ (define-public emacs-macrostep
                 (uri (git-reference
                       (url "https://github.com/joddie/macrostep.git")
                       (commit commit)))
-                (file-name (string-append name "-" version "-checkout"))
+                (file-name (git-file-name name version))
                 (sha256
                  (base32
                   "1fm40mxdn289cyzgw992223dgrjmwxn4q8svyyxfaxjrpb38jhjz"))))