1 files changed, 5 insertions, 0 deletions

diff --git a/build.1 b/build.1
index c7c68b3..b71df89 100644
--- a/build.1
+++ b/build.1
@@ -9,6 +9,7 @@
 .Op Fl d
 .Op Fl d
 .Op Fl d
+.Op Fl f
 .Ar file
 .Op Ar ...
 .Sh DESCRIPTION
@@ -19,6 +20,10 @@ embedded in source files.
 The number of
 .Fl d
 flags control the printing of debugging information.
+The
+.Fl f
+flag disables modification time checks,
+forcing the build process.
 .Pp
 .Nm
 is decidedly not a