diff --git a/pEp/nightly.scm b/pEp/nightly.scm
index 6d974b4..f22b056 100644
--- a/pEp/nightly.scm
+++ b/pEp/nightly.scm
@@ -262,7 +262,10 @@ ENGINE_INC_PATH=~a/include
                ((" wheel( *>= [0-9.]*)?") ""))
              (substitute* "pyproject.toml"
                (("\"wheel( *>=.*)?\",?") ""))
-             #t)))))
+             #t))
+         (add-before 'check 'set-HOME
+           (lambda _
+             (setenv "HOME" "/tmp"))))))
     (native-inputs
      `(("git", git)  ;; due to setuptools_scm
        ("python-pytest" ,python-pytest)