diff --git a/setup.sh b/setup.sh
index a52c28c..3d795f3 100644
--- a/setup.sh
+++ b/setup.sh
@@ -56,12 +56,12 @@ done
 bootmirror=""; rootraidz=""; for disk in `echo "$disks"`; do bootmirror="$bootmirror /dev/disk/by-id/${disk}-part3"; rootraidz="$rootraidz /dev/disk/by-id/${disk}-part4"; done
 
 # wait for the partitions to show up
-for disk in `echo "$disks"`
-do
-	while ! [ -e "/dev/disk/by-id/${disk}-part3" ]; do
-		sleep 1
-	done
-done
+for disk in `echo "$disks"`
+do
+	while ! [ -f "/dev/disk/by-id/${disk}-part3" ]; do
+		sleep 1
+	done
+done
 
 ls -l /dev/disk/by-id | grep part3