diff --git a/infrastructure/bin/portcheck b/infrastructure/bin/portcheck
index f1b06969762..ef261e817aa 100755
--- a/infrastructure/bin/portcheck
+++ b/infrastructure/bin/portcheck
@@ -1,6 +1,6 @@
 #!/bin/ksh
 #
-# $OpenBSD: portcheck,v 1.104 2016/03/22 21:25:53 naddy Exp $
+# $OpenBSD: portcheck,v 1.105 2016/03/23 16:30:38 zhuk Exp $
 # Copyright (c) 2013 Vadim Zhukov
 # 
 # Permission to use, copy, modify, and distribute this software for any
@@ -929,6 +929,8 @@ sub_checks() {
 #
 #   * Manual (man and info) pages should go under ${PREFIX}/{man,info},
 #     not under ${PREFIx}/share/{man,info}.
+#
+#   * Manual pages shouldn't be compressed.
 check_plist() {
 	$debugging && echo "CALLED: check_plist($*)" >&2
 
@@ -1177,6 +1179,9 @@ check_plist() {
 		share/info/*)
 			wrong_info=true
 			;;
+		"@man "*.gz)
+			err "${portref}compressed $l"
+			;;
 		esac
 	done
 
diff --git a/tests/portcheck/t10.sample b/tests/portcheck/t10.sample
index 75297395f43..7caeab0011c 100644
--- a/tests/portcheck/t10.sample
+++ b/tests/portcheck/t10.sample
@@ -1,2 +1,3 @@
+compressed @man man/man1/bar.1.gz
 info pages should go under ${PREFIX}/info/ rather than under ${PREFIX}/share/info/
 manual pages should go under ${PREFIX}/man/ rather than under ${PREFIX}/share/man/
diff --git a/tests/portcheck/t10/pkg/PLIST b/tests/portcheck/t10/pkg/PLIST
index 1006f705e4f..4c2f23e485d 100644
--- a/tests/portcheck/t10/pkg/PLIST
+++ b/tests/portcheck/t10/pkg/PLIST
@@ -1,4 +1,5 @@
-@comment $OpenBSD: PLIST,v 1.1 2014/05/06 11:02:04 zhuk Exp $
+@comment $OpenBSD: PLIST,v 1.2 2016/03/23 16:30:38 zhuk Exp $
+@man man/man1/bar.1.gz
 share/man/
 share/man/man1/
 share/man/man1/foo.1