diff --git a/multinode-demo/validator.sh b/multinode-demo/validator.sh
index efb7a6afd56ea0..77082f6589245b 100755
--- a/multinode-demo/validator.sh
+++ b/multinode-demo/validator.sh
@@ -164,9 +164,6 @@ while [[ -n $1 ]]; do
     elif [[ $1 = --known-validator ]]; then
       args+=("$1" "$2")
       shift 2
-    elif [[ $1 = --halt-on-known-validators-accounts-hash-mismatch ]]; then
-      args+=("$1")
-      shift
     elif [[ $1 = --max-genesis-archive-unpacked-size ]]; then
       args+=("$1" "$2")
       shift 2
diff --git a/validator/src/cli.rs b/validator/src/cli.rs
index 3c7ad1b20ef6cc..b65054a20da139 100644
--- a/validator/src/cli.rs
+++ b/validator/src/cli.rs
@@ -2027,17 +2027,6 @@ fn deprecated_arguments() -> Vec<DeprecatedArg> {
             .long("enable-quic-servers"),
         usage_warning: "The quic server is now enabled by default.",
     );
-    add_arg!(
-        Arg::with_name("halt_on_known_validators_accounts_hash_mismatch")
-            .alias("halt-on-trusted-validators-accounts-hash-mismatch")
-            .long("halt-on-known-validators-accounts-hash-mismatch")
-            .requires("known_validators")
-            .takes_value(false)
-            .help(
-                "Abort the validator if a bank hash mismatch is detected within known validator \
-                 set"
-            ),
-    );
     add_arg!(Arg::with_name("minimal_rpc_api")
         .long("minimal-rpc-api")
         .takes_value(false)