--- imap/mkimapdcert.in.orig	2010-02-15 21:42:15.000000000 +0100
+++ imap/mkimapdcert.in	2010-02-15 21:36:46.000000000 +0100
@@ -40,7 +40,7 @@
 then
 	cp /dev/null @certsdir@/imapd.pem
 	chmod 600 @certsdir@/imapd.pem
-	chown @mailuser@ @certsdir@/imapd.pem
+	/usr/sbin/chown @mailuser@ @certsdir@/imapd.pem
 
 	dd if=@RANDOMV@ of=@certsdir@/imapd.rand count=1 2>/dev/null
 	@OPENSSL@ req -new -x509 -days 365 -nodes \