diff --git a/tools/build/options/WITHOUT_GNU b/tools/build/options/WITHOUT_GNU
index 0a041a47a3e3..3a37c92a1f7a 100644
--- a/tools/build/options/WITHOUT_GNU
+++ b/tools/build/options/WITHOUT_GNU
@@ -2,3 +2,4 @@
 Set to not build contributed GNU software as a part of the base system.
 This option can be useful if the system built must not contain any code
 covered by the GNU Public License due to legal reasons.
+.Sy "The option has no effect yet."
diff --git a/tools/build/options/WITHOUT_PAM b/tools/build/options/WITHOUT_PAM
index c19725d170d8..b865a5186877 100644
--- a/tools/build/options/WITHOUT_PAM
+++ b/tools/build/options/WITHOUT_PAM
@@ -1,2 +1,3 @@
 .\" $FreeBSD$
 Set to not build PAM library and modules.
+.Sy "This option is deprecated and does nothing."