diff --git a/install.sh b/install.sh
index 5d5a998..5fc59a8 100755
--- a/install.sh
+++ b/install.sh
@@ -142,7 +142,7 @@ prompt_drive() {
 
 partition() {
 	print_phase "Disk partitioning"
-	[ -e /bin/parted ] || download_parted
+	[ -f /bin/parted ] || download_parted
 
 	echo -n "Partitioning drive..."
 	parted --script "$DRIVE_TARGET" \
diff --git a/post-install.sh b/post-install.sh
index bf93e93..f0bf9b9 100755
--- a/post-install.sh
+++ b/post-install.sh
@@ -401,7 +401,7 @@ append_line() {
 }
 
 configure_doas() {
-	[ -e /bin/doas ] || return 0
+	[ -f /bin/doas ] || return 0
 	echo "Configuring doas..."
 	prompt_user 'doas will be configured'
 	local DOAS_USER="$USER_OUT"