diff --git a/watch.1 b/watch.1
index ac81f467..7e2edc81 100644
--- a/watch.1
+++ b/watch.1
@@ -15,7 +15,7 @@ program is run every 2 seconds.
 will run until interrupted.
 .SH OPTIONS
 .TP
-\fB\-f\fR, \fB\-\-differences\fR
+\fB\-d\fR, \fB\-\-differences\fR
 Highlight the differences between successive updates.
 .TP
 \fB\-n\fR, \fB\-\-interval\fR \fIseconds\fR
diff --git a/watch.c b/watch.c
index 769ce3cf..66e7e249 100644
--- a/watch.c
+++ b/watch.c
@@ -66,14 +66,12 @@ static void __attribute__ ((__noreturn__))
 	fputs(USAGE_OPTIONS, out);
 	fputs(_("  -b, --beep             beep if command has a non-zero exit\n"
 		"  -c, --color            interpret ANSI color sequences\n"
+		"  -d, --differences      highlight changes between updates\n"
 		"  -e, --errexit          exit if command has a non-zero exit\n"
-		"  -f, --differences      highlight changes between updates\n"
 		"  -n, --interval <secs>  seconds to wait between updates\n"
 		"  -p, --precise          attempt run command in precise intervals\n"
 		"  -t, --no-title         turn off header\n"
-		"  -x, --exec             pass command to exec instead of \"sh -c\"\n"
-		"  -h, --help             display this help text\n"
-		"  -v, --version          display version information and exit\n"), out);
+		"  -x, --exec             pass command to exec instead of \"sh -c\"\n"), out);
 	fputs(USAGE_SEPARATOR, out);
 	fputs(USAGE_HELP, out);
 	fputs(_(" -v, --version  output version information and exit\n"), out);