diff --git a/clean.sh b/clean.sh
index a9f3f43..44cce96 100644
--- a/clean.sh
+++ b/clean.sh
@@ -1,11 +1,11 @@
 #!/bin/sh
 #
-# $P4: //depot/projects/openpam/clean.sh#1 $
+# $P4: //depot/projects/openpam/clean.sh#2 $
 
 tmpfile="/tmp/openpam-clean.$$"
 p4 files ... | grep -v 'delete change' |
     sed 's|^.*/openpam/||; s|#.*$||' > "${tmpfile}"
-find . -type f | cut -c 3- | while read file ; do
+find . -not -type d | cut -c 3- | while read file ; do
     grep "^${file}\$" "${tmpfile}" >/dev/null || rm -v "${file}"
 done
 find . -type d -empty -print -delete