diff --git a/tools/fork-network/src/cli.rs b/tools/fork-network/src/cli.rs
index 1dc2db75575..3217f94575c 100644
--- a/tools/fork-network/src/cli.rs
+++ b/tools/fork-network/src/cli.rs
@@ -15,6 +15,7 @@ use near_primitives::hash::CryptoHash;
 use near_primitives::receipt::Receipt;
 use near_primitives::runtime::config::RuntimeConfig;
 use near_primitives::runtime::config_store::RuntimeConfigStore;
+use near_primitives::serialize::dec_format;
 use near_primitives::shard_layout::ShardUId;
 use near_primitives::state::FlatStateValue;
 use near_primitives::state_record::StateRecord;
@@ -115,6 +116,7 @@ struct ResetCmd;
 struct Validator {
     account_id: AccountId,
     public_key: PublicKey,
+    #[serde(with = "dec_format")]
     amount: Option<Balance>,
 }