diff --git a/src/api.rs b/src/api.rs
index 1149277..b31f9e8 100644
--- a/src/api.rs
+++ b/src/api.rs
@@ -549,7 +549,7 @@ pub fn get_opreturn(transaction: String) -> ApiResult<String> {
 #[wasm_bindgen]
 pub fn process_commit_new_state(mut process: Process, state_id: String, new_tip: String) -> ApiResult<Process> {
     let state_id_array: [u8; 32] = Vec::from_hex(&state_id)?.try_into().unwrap();
-    let new_tip = OutPoint::from_str(&new_tip)?;
+    let new_tip = OutPoint::new(Txid::from_str(&new_tip)?, 0);
     let new_state: ProcessState;
     if let Ok(commited_state) = process.get_state_for_id(&state_id_array) {
         new_state = commited_state.clone();