diff --git a/lib/hardfork.ak b/lib/hardfork.ak
index fdb72b1..9e0bc3a 100644
--- a/lib/hardfork.ak
+++ b/lib/hardfork.ak
@@ -905,7 +905,6 @@ pub fn hard_fork(
 
 pub fn failed_fork(
   fortuna_v1_hash: ByteArray,
-  hardfork_state_input: OutputReference,
   fortuna_v1_output: Int,
   transaction: Transaction,
   own_policy: ByteArray,
diff --git a/validators/hard_fork.ak b/validators/hard_fork.ak
index fee03fb..267e5f2 100644
--- a/validators/hard_fork.ak
+++ b/validators/hard_fork.ak
@@ -374,7 +374,7 @@ type NftForkAction {
     hard_fork_state_ref: OutputReference,
     locked_tokens_ref: OutputReference,
   }
-  FailedFork { hardfork_state_input: OutputReference, fortuna_v1_output: Int }
+  FailedFork { fortuna_v1_output: Int }
 }
 
 // maybe we should do time instead of block height?
@@ -529,10 +529,9 @@ validator(init_utxo_ref: OutputReference, fortuna_v1_hash: ByteArray) {
               user_locked_tuna,
             )
           }
-          FailedFork { hardfork_state_input, fortuna_v1_output } ->
+          FailedFork { fortuna_v1_output } ->
             hardfork.failed_fork(
               fortuna_v1_hash,
-              hardfork_state_input,
               fortuna_v1_output,
               transaction,
               own_policy,