diff --git a/setup.sh b/setup.sh
index deeac17..8a246f5 100755
--- a/setup.sh
+++ b/setup.sh
@@ -34,7 +34,7 @@ if have fossil; then
 	fi
 
 	gpg_key="7395312F"
-	if test $($gpg -a --export $gpg_key 2>/dev/null | wc -c) -gt 0; then
+	if $gpg --list-secret-keys $gpg_key &>/dev/null; then
 		fossil set --global pgp-command \
 			"$gpg -u $gpg_key --clearsign -o"
 		fossil set --global clearsign 1