diff --git a/guix/ui.scm b/guix/ui.scm
index 98b30445c8..2595e44062 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -1563,8 +1563,7 @@ zero means that PACKAGE does not match any of REGEXPS."
       ;; Set 'LESS' so that 'less' exits if everything fits on the screen (F),
       ;; lets ANSI escapes through (r), does not send the termcap
       ;; initialization string (X).
-      (let ((pager (with-environment-variables `(("LESS"
-                                                  ,(or (getenv "LESS") "FrX")))
+      (let ((pager (with-environment-variables `(("LESS" "FrX"))
                      (open-pipe* OPEN_WRITE
                                  (or (getenv "GUIX_PAGER") (getenv "PAGER")
                                      "less")))))