diff --git a/crates/apollo_p2p_sync/src/client/test.rs b/crates/apollo_p2p_sync/src/client/test.rs
index 9967605499c..54a691257e3 100644
--- a/crates/apollo_p2p_sync/src/client/test.rs
+++ b/crates/apollo_p2p_sync/src/client/test.rs
@@ -345,6 +345,7 @@ fn create_random_sync_block(
         sequencer,
         l1_da_mode,
         starknet_version,
+        fee_proposal,
     } = BlockHeaderWithoutHash::get_test_instance(&mut rng);
     let block_header_without_hash = BlockHeaderWithoutHash {
         block_number,
@@ -359,6 +360,7 @@ fn create_random_sync_block(
         sequencer,
         l1_da_mode,
         starknet_version,
+        fee_proposal,
     };
     let block_header_commitments = BlockHeaderCommitments::get_test_instance(&mut rng);
     SyncBlock {
diff --git a/crates/apollo_protobuf/src/converters/header.rs b/crates/apollo_protobuf/src/converters/header.rs
index dd9674f8c58..40a874fa34e 100644
--- a/crates/apollo_protobuf/src/converters/header.rs
+++ b/crates/apollo_protobuf/src/converters/header.rs
@@ -9,6 +9,7 @@ use starknet_api::block::{
     BlockHeaderWithoutHash,
     BlockNumber,
     BlockSignature,
+    GasPrice,
     GasPricePerToken,
     StarknetVersion,
 };
@@ -205,6 +206,7 @@ impl TryFrom<protobuf::SignedBlockHeader> for SignedBlockHeader {
                     timestamp,
                     l1_da_mode,
                     starknet_version,
+                    fee_proposal: GasPrice::default(),
                 },
                 state_diff_commitment,
                 state_diff_length,
diff --git a/crates/apollo_starknet_client/src/reader/objects/block.rs b/crates/apollo_starknet_client/src/reader/objects/block.rs
index 3664156e99e..3bef8773b5b 100644
--- a/crates/apollo_starknet_client/src/reader/objects/block.rs
+++ b/crates/apollo_starknet_client/src/reader/objects/block.rs
@@ -342,6 +342,7 @@ impl Block {
                 l1_data_gas_price: self.l1_data_gas_price(),
                 l1_da_mode: self.l1_da_mode(),
                 starknet_version: self.starknet_version(),
+                fee_proposal: GasPrice::default(),
             },
             state_diff_commitment: self.state_diff_commitment(),
             transaction_commitment,
diff --git a/crates/apollo_storage/src/header.rs b/crates/apollo_storage/src/header.rs
index 8ece369b7f2..85752a32b7a 100644
--- a/crates/apollo_storage/src/header.rs
+++ b/crates/apollo_storage/src/header.rs
@@ -225,6 +225,7 @@ impl<Mode: TransactionKind> HeaderStorageReader for StorageTxn<'_, Mode> {
                 timestamp: block_header.timestamp,
                 l1_da_mode: block_header.l1_da_mode,
                 starknet_version,
+                fee_proposal: GasPrice::default(),
             },
             state_diff_commitment: block_header.state_diff_commitment,
             transaction_commitment: block_header.transaction_commitment,
@@ -429,6 +430,7 @@ impl HeaderStorageWriter for StorageTxn<'_, RW> {
                     timestamp: reverted_header.timestamp,
                     l1_da_mode: reverted_header.l1_da_mode,
                     starknet_version,
+                    fee_proposal: GasPrice::default(),
                 },
                 state_diff_commitment: reverted_header.state_diff_commitment,
                 transaction_commitment: reverted_header.transaction_commitment,
diff --git a/crates/apollo_test_utils/src/lib.rs b/crates/apollo_test_utils/src/lib.rs
index dac524df594..57eec41c518 100644
--- a/crates/apollo_test_utils/src/lib.rs
+++ b/crates/apollo_test_utils/src/lib.rs
@@ -450,6 +450,7 @@ auto_impl_get_test_instance! {
         pub timestamp: BlockTimestamp,
         pub l1_da_mode: L1DataAvailabilityMode,
         pub starknet_version: StarknetVersion,
+        pub fee_proposal: GasPrice,
     }
     pub struct BlockHeaderCommitments {
         pub transaction_commitment: TransactionCommitment,
diff --git a/crates/starknet_api/src/block.rs b/crates/starknet_api/src/block.rs
index fac9fbb3e57..c439dc11ca4 100644
--- a/crates/starknet_api/src/block.rs
+++ b/crates/starknet_api/src/block.rs
@@ -241,6 +241,8 @@ pub struct BlockHeaderWithoutHash {
     pub timestamp: BlockTimestamp,
     pub l1_da_mode: L1DataAvailabilityMode,
     pub starknet_version: StarknetVersion,
+    /// SNIP-35: proposer's oracle-derived recommended fee.
+    pub fee_proposal: GasPrice,
 }
 
 /// The [transactions](`crate::transaction::Transaction`) and their