diff --git a/modules/gpg/init.zsh b/modules/gpg/init.zsh
index 7976fd7d..4498b7b0 100644
--- a/modules/gpg/init.zsh
+++ b/modules/gpg/init.zsh
@@ -26,7 +26,7 @@ if [[ -z "$GPG_AGENT_INFO" && ! -S "${GNUPGHOME:-$HOME/.gnupg}/S.gpg-agent" ]];
 fi
 
 # Inform gpg-agent of the current TTY for user prompts.
-export GPG_TTY="$(tty)"
+export GPG_TTY=$TTY
 
 # Integrate with the SSH module.
 if grep '^enable-ssh-support' "$_gpg_agent_conf" &> /dev/null; then