diff --git a/gnu/packages/chez.scm b/gnu/packages/chez.scm
index df9d68a55c..7bcffd3fff 100644
--- a/gnu/packages/chez.scm
+++ b/gnu/packages/chez.scm
@@ -289,12 +289,6 @@ and 32-bit PowerPC architectures.")
                       #:tests? #f        ; no tests
                       #:phases
                       (modify-phases %standard-phases
-                        (add-before 'build 'set-HOME
-                          (lambda _
-                            ;; FIXME: texlive-union does not find the built
-                            ;; metafonts, so it tries to generate them in HOME.
-                            (setenv "HOME" "/tmp")
-                            #t))
                         ;; This package has a custom "bootstrap" script that
                         ;; is meant to be run from the Makefile.
                         (delete 'bootstrap)