diff --git a/g3mkcert/src/main.rs b/g3mkcert/src/main.rs
index 813d9d5fc..22b2ecb4d 100644
--- a/g3mkcert/src/main.rs
+++ b/g3mkcert/src/main.rs
@@ -301,6 +301,7 @@ fn build_cli_args() -> Command {
             ARG_EC256,
             ARG_EC384,
             ARG_EC521,
+            ARG_SM2,
             ARG_ED25519,
             ARG_ED448,
             ARG_X25519,