diff --git a/en_US.ISO8859-1/articles/pam/Makefile b/en_US.ISO8859-1/articles/pam/Makefile
index 059a7db3ed..a7906eff2e 100644
--- a/en_US.ISO8859-1/articles/pam/Makefile
+++ b/en_US.ISO8859-1/articles/pam/Makefile
@@ -1,21 +1,24 @@
 # $FreeBSD$
 
 DOC?= article
 
 FORMATS?= html
 
 INSTALL_COMPRESSED?=gz
 INSTALL_ONLY_COMPRESSED?=
 
 JADEFLAGS+=	-V %generate-article-toc%
 
-SRCS= article.sgml pam_app.c
+SRCS= article.sgml pam_app.c pam_module.c
 
-CLEANFILES+= pam_app.c
+CLEANFILES+= pam_app.c pam_module.c
 
 pam_app.c: su.c
-	perl -ne 'print unless m|^[/ ]\*|' su.c >${.TARGET}
+	sed -e '/^[\/ ]\*/d' ${.ALLSRC} >${.TARGET}
+
+pam_module.c: pam_unix.c
+	sed -e '/^[\/ ]\*/d' ${.ALLSRC} >${.TARGET}
 
 DOC_PREFIX?= ${.CURDIR}/../../..
 
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"