diff --git a/sbin/fsck_ffs/fsck_ffs.8 b/sbin/fsck_ffs/fsck_ffs.8
index 98c97f327c5f..31391244ac78 100644
--- a/sbin/fsck_ffs/fsck_ffs.8
+++ b/sbin/fsck_ffs/fsck_ffs.8
@@ -321,6 +321,12 @@ contains default list of file systems to check.
 .El
 .Sh EXIT STATUS
 .Ex -std
+.Pp
+If the option
+.Fl F
+is used,
+.Nm
+exits 7 if the file system is clean.
 .Sh DIAGNOSTICS
 The diagnostics produced by
 .Nm