diff --git a/tools/build/options/WITHOUT_INSTALLLIB b/tools/build/options/WITHOUT_INSTALLLIB
index bfd313fedfdd..e2aba1363f4f 100644
--- a/tools/build/options/WITHOUT_INSTALLLIB
+++ b/tools/build/options/WITHOUT_INSTALLLIB
@@ -3,3 +3,6 @@ Set this if you do not want to install optional libraries.
 For example when creating a
 .Xr nanobsd 8
 image.
+.Bf -symbolic
+The option does not work for build targets.
+.Ef