diff --git a/src/api.rs b/src/api.rs
index fb930e9..c806e10 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -617,7 +617,7 @@ fn process_transaction(
 }
 
 #[wasm_bindgen]
-pub fn parse_new_tx(new_tx_msg: String, block_height: u32, fee_rate: u32) -> ApiResult<ApiReturn> {
+pub fn parse_new_tx(new_tx_msg: String, block_height: u32) -> ApiResult<ApiReturn> {
     let new_tx: NewTxMessage = serde_json::from_str(&new_tx_msg)?;
 
     if let Some(error) = new_tx.error {