diff --git a/radio.scm b/radio.scm
index ead94de..a4ec779 100644
--- a/radio.scm
+++ b/radio.scm
@@ -187,7 +187,8 @@
                  (home-fish-configuration
                   (config (list file:fish-custom-functions))
                   (environment-variables
-                   `(("fish_complete_path"
+                   `(("GPG_TTY" . "(tty)")
+                     ("fish_complete_path"
                       . ,(format #f "$fish_complete_path~@{ ~a/fish/completions}"
                                     "$HOME/.guix-home/profile/share"))))
                   (aliases