diff --git a/include/usage.h b/include/usage.h
index 49c9400..3c657a1 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -4321,6 +4321,12 @@
      "\nOptions:" \
      "\n	-v	Verbose" \
 
+#define timeout_trivial_usage \
+	"[-t SECS] [-s SIG] PROG [ARGS]"
+#define timeout_full_usage "\n\n" \
+       "Runs PROG. Sends SIG to it if it is not gone in SECS seconds.\n" \
+       "Defaults: SECS: 10, SIG: TERM.\n" \
+
 #define top_trivial_usage \
        "[-b] [-nCOUNT] [-dSECONDS]"
 #define top_full_usage "\n\n" \