diff --git a/node/actors/bft/src/testonly/make.rs b/node/actors/bft/src/testonly/make.rs
index 74e9a1b6..c87fbd78 100644
--- a/node/actors/bft/src/testonly/make.rs
+++ b/node/actors/bft/src/testonly/make.rs
@@ -59,8 +59,9 @@ pub fn make_genesis(
     keys: &[validator::SecretKey],
     protocol_version: validator::ProtocolVersion,
     payload: validator::Payload,
+    block_number: validator::BlockNumber,
 ) -> (validator::FinalBlock, validator::ValidatorSet) {
-    let header = validator::BlockHeader::genesis(payload.hash());
+    let header = validator::BlockHeader::genesis(payload.hash(), block_number);
     let validator_set = validator::ValidatorSet::new(keys.iter().map(|k| k.public())).unwrap();
     let signed_messages: Vec<_> = keys
         .iter()
diff --git a/node/actors/bft/src/testonly/run.rs b/node/actors/bft/src/testonly/run.rs
index 8a830641..63384362 100644
--- a/node/actors/bft/src/testonly/run.rs
+++ b/node/actors/bft/src/testonly/run.rs
@@ -36,6 +36,7 @@ impl Test {
             &keys,
             validator::ProtocolVersion::EARLIEST,
             validator::Payload(vec![]),
+            validator::BlockNumber(0),
         );
         let nodes: Vec<_> = nodes
             .into_iter()
diff --git a/node/actors/bft/src/testonly/ut_harness.rs b/node/actors/bft/src/testonly/ut_harness.rs
index 3ffddff3..dc47f46e 100644
--- a/node/actors/bft/src/testonly/ut_harness.rs
+++ b/node/actors/bft/src/testonly/ut_harness.rs
@@ -36,6 +36,7 @@ impl UTHarness {
             &keys,
             validator::ProtocolVersion::EARLIEST,
             Payload(vec![]),
+            validator::BlockNumber(0),
         );
         let (mut consensus, pipe) =
             crate::testonly::make_consensus(ctx, &keys[0], &val_set, &genesis).await;
diff --git a/node/actors/executor/src/testonly.rs b/node/actors/executor/src/testonly.rs
index 3ee0a2eb..d88264cd 100644
--- a/node/actors/executor/src/testonly.rs
+++ b/node/actors/executor/src/testonly.rs
@@ -5,10 +5,7 @@ use std::collections::HashMap;
 use zksync_concurrency::net;
 use zksync_consensus_bft::testonly::make_genesis;
 use zksync_consensus_network::{consensus, testonly::Instance};
-use zksync_consensus_roles::{
-    node,
-    validator::{self, Payload},
-};
+use zksync_consensus_roles::{node, validator};
 
 impl ConsensusConfig {
     fn from_network_config(
@@ -44,7 +41,8 @@ impl FullValidatorConfig {
     pub fn for_single_validator(
         rng: &mut impl Rng,
         protocol_version: validator::ProtocolVersion,
-        genesis_block_payload: Payload,
+        genesis_block_payload: validator::Payload,
+        genesis_block_number: validator::BlockNumber,
     ) -> Self {
         let mut net_configs = Instance::new_configs(rng, 1, 0);
         assert_eq!(net_configs.len(), 1);
@@ -58,6 +56,7 @@ impl FullValidatorConfig {
             &[validator_key.clone()],
             protocol_version,
             genesis_block_payload,
+            genesis_block_number,
         );
         let node_key = net_config.gossip.key.clone();
         let node_config = ExecutorConfig {
diff --git a/node/actors/executor/src/tests.rs b/node/actors/executor/src/tests.rs
index db2fa1d8..0e035355 100644
--- a/node/actors/executor/src/tests.rs
+++ b/node/actors/executor/src/tests.rs
@@ -77,6 +77,7 @@ async fn executor_misconfiguration(name: &str, mutation: fn(&mut FinalBlock)) {
         rng,
         validator::ProtocolVersion::EARLIEST,
         Payload(vec![]),
+        BlockNumber(0),
     );
     let genesis_block = &mut validator.node_config.genesis_block;
     mutation(genesis_block);
@@ -98,6 +99,7 @@ async fn genesis_block_mismatch() {
         rng,
         validator::ProtocolVersion::EARLIEST,
         Payload(vec![]),
+        BlockNumber(0),
     );
     let mut genesis_block = validator.node_config.genesis_block.clone();
     genesis_block.header.number = BlockNumber(1);
@@ -119,6 +121,7 @@ async fn executing_single_validator() {
         rng,
         validator::ProtocolVersion::EARLIEST,
         Payload(vec![]),
+        BlockNumber(0),
     );
     let genesis_block = &validator.node_config.genesis_block;
     let storage = InMemoryStorage::new(genesis_block.clone());
@@ -148,6 +151,7 @@ async fn executing_validator_and_full_node() {
         rng,
         validator::ProtocolVersion::EARLIEST,
         Payload(vec![]),
+        BlockNumber(0),
     );
     let full_node = validator.connect_full_node(rng);
 
@@ -194,6 +198,7 @@ async fn syncing_full_node_from_snapshot(delay_block_storage: bool) {
         rng,
         validator::ProtocolVersion::EARLIEST,
         Payload(vec![]),
+        BlockNumber(0),
     );
     let mut full_node = validator.connect_full_node(rng);
 
diff --git a/node/actors/sync_blocks/src/tests/mod.rs b/node/actors/sync_blocks/src/tests/mod.rs
index 154c2e0b..f88007b2 100644
--- a/node/actors/sync_blocks/src/tests/mod.rs
+++ b/node/actors/sync_blocks/src/tests/mod.rs
@@ -48,7 +48,7 @@ impl TestValidators {
         };
 
         let payload = Payload(vec![]);
-        let mut latest_block = BlockHeader::genesis(payload.hash());
+        let mut latest_block = BlockHeader::genesis(payload.hash(), BlockNumber(0));
         let final_blocks = (0..block_count).map(|_| {
             let final_block = FinalBlock {
                 header: latest_block,
diff --git a/node/libs/roles/src/validator/messages/block.rs b/node/libs/roles/src/validator/messages/block.rs
index 5fae9ec4..adc3fe7b 100644
--- a/node/libs/roles/src/validator/messages/block.rs
+++ b/node/libs/roles/src/validator/messages/block.rs
@@ -131,10 +131,10 @@ impl BlockHeader {
     }
 
     /// Creates a genesis block.
-    pub fn genesis(payload: PayloadHash) -> Self {
+    pub fn genesis(payload: PayloadHash, number: BlockNumber) -> Self {
         Self {
             parent: BlockHeaderHash(Keccak256::default()),
-            number: BlockNumber(0),
+            number,
             payload,
         }
     }
diff --git a/node/libs/roles/src/validator/testonly.rs b/node/libs/roles/src/validator/testonly.rs
index 038aae2e..dfe1e0f4 100644
--- a/node/libs/roles/src/validator/testonly.rs
+++ b/node/libs/roles/src/validator/testonly.rs
@@ -36,7 +36,7 @@ pub fn make_justification<R: Rng>(
 /// WARNING: it is not a fully correct FinalBlock.
 pub fn make_genesis_block<R: Rng>(rng: &mut R, protocol_version: ProtocolVersion) -> FinalBlock {
     let payload: Payload = rng.gen();
-    let header = BlockHeader::genesis(payload.hash());
+    let header = BlockHeader::genesis(payload.hash(), BlockNumber(0));
     let justification = make_justification(rng, &header, protocol_version);
     FinalBlock {
         header,
diff --git a/node/libs/storage/src/tests/mod.rs b/node/libs/storage/src/tests/mod.rs
index 229209d1..ffcb4744 100644
--- a/node/libs/storage/src/tests/mod.rs
+++ b/node/libs/storage/src/tests/mod.rs
@@ -31,7 +31,7 @@ impl InitStore for () {
 fn genesis_block(rng: &mut impl Rng) -> FinalBlock {
     let payload = Payload(vec![]);
     FinalBlock {
-        header: BlockHeader::genesis(payload.hash()),
+        header: BlockHeader::genesis(payload.hash(), BlockNumber(0)),
         payload,
         justification: rng.gen(),
     }
diff --git a/node/tools/src/bin/localnet_config.rs b/node/tools/src/bin/localnet_config.rs
index 3b5461ed..bbeffebf 100644
--- a/node/tools/src/bin/localnet_config.rs
+++ b/node/tools/src/bin/localnet_config.rs
@@ -71,6 +71,7 @@ fn main() -> anyhow::Result<()> {
         &validator_keys,
         protocol_version,
         validator::Payload(vec![]),
+        validator::BlockNumber(0),
     );
 
     // Each node will have `gossip_peers` outbound peers.