diff --git a/packages/fuels-accounts/src/lib.rs b/packages/fuels-accounts/src/lib.rs
index 8ea265a590..1c4ad1f9da 100644
--- a/packages/fuels-accounts/src/lib.rs
+++ b/packages/fuels-accounts/src/lib.rs
@@ -417,7 +417,7 @@ mod tests {
         assert_eq!(signature, tx_signature);
 
         // Check if the signature is what we expect it to be
-        assert_eq!(signature, Signature::from_str("d7027be16db0aada625ac8cd438f9b6187bd74465495ba39511c1ad72b7bb10af4ef582c94cc33433f7a1eb4f2ad21c471473947f5f645e90924ba273e2cee7f")?);
+        assert_eq!(signature, Signature::from_str("df91e8ae723165f9a28b70910e3da41300da413607065618522f3084c9f051114acb1b51a836bd63c3d84a1ac904bf37b82ef03973c19026b266d04872f170a6")?);
 
         // Recover the address that signed the transaction
         let recovered_address = signature.recover(&message)?;
diff --git a/packages/fuels-core/src/types/transaction_builders.rs b/packages/fuels-core/src/types/transaction_builders.rs
index 75257825e0..ff9d89d9da 100644
--- a/packages/fuels-core/src/types/transaction_builders.rs
+++ b/packages/fuels-core/src/types/transaction_builders.rs
@@ -42,7 +42,7 @@ pub trait TransactionBuilder: Send {
     fn fee_checked_from_tx(&self, params: &ConsensusParameters) -> Result<Option<TransactionFee>>;
     fn with_maturity(self, maturity: u32) -> Self;
     fn with_gas_price(self, gas_price: u64) -> Self;
-    fn with_gas_limit(self, gas_limit: Option<u64>) -> Self;
+    fn with_gas_limit(self, gas_limit: u64) -> Self;
     fn with_tx_params(self, tx_params: TxParameters) -> Self;
     fn with_inputs(self, inputs: Vec<Input>) -> Self;
     fn with_outputs(self, outputs: Vec<Output>) -> Self;
@@ -109,14 +109,15 @@ macro_rules! impl_tx_trait {
                 self
             }
 
-            fn with_gas_limit(mut self, gas_limit: Option<u64>) -> Self {
-                self.gas_limit = gas_limit;
+            fn with_gas_limit(mut self, gas_limit: u64) -> Self {
+                self.gas_limit = Some(gas_limit);
                 self
             }
 
-            fn with_tx_params(self, tx_params: TxParameters) -> Self {
-                self.with_gas_limit(tx_params.gas_limit())
-                    .with_gas_price(tx_params.gas_price())
+            fn with_tx_params(mut self, tx_params: TxParameters) -> Self {
+                self.gas_limit = tx_params.gas_limit();
+
+                self.with_gas_price(tx_params.gas_price())
                     .with_maturity(tx_params.maturity().into())
             }
 
diff --git a/packages/fuels-core/src/types/wrappers/transaction.rs b/packages/fuels-core/src/types/wrappers/transaction.rs
index 379c3dd92b..0296c23632 100644
--- a/packages/fuels-core/src/types/wrappers/transaction.rs
+++ b/packages/fuels-core/src/types/wrappers/transaction.rs
@@ -10,7 +10,10 @@ use fuel_tx::{
 };
 use fuel_types::ChainId;
 
-use crate::{types::Result, constants::{DEFAULT_GAS_PRICE, DEFAULT_MATURITY}};
+use crate::{
+    constants::{DEFAULT_GAS_PRICE, DEFAULT_MATURITY},
+    types::Result,
+};
 
 #[derive(Debug, Copy, Clone)]
 pub struct TxParameters {