diff --git a/contrib/dracut/90zfs/zfs-lib.sh.in b/contrib/dracut/90zfs/zfs-lib.sh.in
index 23c07af9e..44021c6e5 100755
--- a/contrib/dracut/90zfs/zfs-lib.sh.in
+++ b/contrib/dracut/90zfs/zfs-lib.sh.in
@@ -144,7 +144,7 @@ ask_for_password() {
 
     { flock -s 9;
         # Prompt for password with plymouth, if installed and running.
-        if whereis plymouth >/dev/null 2>&1 && plymouth --ping 2>/dev/null; then
+        if type plymouth >/dev/null 2>&1 && plymouth --ping 2>/dev/null; then
             plymouth ask-for-password \
                 --prompt "$ply_prompt" --number-of-tries="$ply_tries" \
                 --command="$ply_cmd"