diff --git a/lib/hx509/hxtool-commands.in b/lib/hx509/hxtool-commands.in
index 3d8877190..eb06d3c17 100644
--- a/lib/hx509/hxtool-commands.in
+++ b/lib/hx509/hxtool-commands.in
@@ -66,6 +66,12 @@ command = {
 		argument = "password"
 		help = "password, prompter, or environment"
 	}
+	option = {
+		long = "peer-alg"
+		type = "strings"
+		argument = "oid"
+		help = "oid that the peer support"
+	}
 	option = {
 		long = "content-info"
 		type = "flag"