diff --git a/validator/src/main.rs b/validator/src/main.rs
index 4d70987b0b..e615ded266 100644
--- a/validator/src/main.rs
+++ b/validator/src/main.rs
@@ -783,6 +783,12 @@ pub fn main() {
                 .takes_value(false)
                 .help("Use CUDA"),
         )
+        .arg(
+            Arg::with_name("require_tower")
+                .long("require-tower")
+                .takes_value(false)
+                .hidden(true)
+        )
         .arg(
             Arg::with_name("expected_genesis_hash")
                 .long("expected-genesis-hash")