diff --git a/contracts/src/mcms.cairo b/contracts/src/mcms.cairo
index 4bad49123..1b4e7dc71 100644
--- a/contracts/src/mcms.cairo
+++ b/contracts/src/mcms.cairo
@@ -142,10 +142,9 @@ const MANY_CHAIN_MULTI_SIG_DOMAIN_SEPARATOR_OP: u256 =
 const MANY_CHAIN_MULTI_SIG_DOMAIN_SEPARATOR_METADATA: u256 =
     0xe6b82be989101b4eb519770114b997b97b3c8707515286748a871717f0e4ea1c;
 
-fn hash_metadata(metadata: RootMetadata, valid_until: u32) -> u256 {
+fn hash_metadata(metadata: RootMetadata) -> u256 {
     let encoded_metadata: Bytes = BytesTrait::new_empty()
         .encode(MANY_CHAIN_MULTI_SIG_DOMAIN_SEPARATOR_METADATA)
-        .encode(valid_until)
         .encode(metadata.chain_id)
         .encode(metadata.multisig)
         .encode(metadata.pre_op_count)
@@ -347,7 +346,7 @@ mod ManyChainMultiSig {
             );
 
             // verify metadataProof
-            let hashed_metadata_leaf = hash_metadata(metadata, valid_until);
+            let hashed_metadata_leaf = hash_metadata(metadata);
             assert(
                 verify_merkle_proof(metadata_proof, root, hashed_metadata_leaf),
                 'proof verification failed'
diff --git a/contracts/src/tests/test_mcms/test_set_root.cairo b/contracts/src/tests/test_mcms/test_set_root.cairo
index d8d893a9d..3cce4db88 100644
--- a/contracts/src/tests/test_mcms/test_set_root.cairo
+++ b/contracts/src/tests/test_mcms/test_set_root.cairo
@@ -126,7 +126,7 @@ fn setup_mcms_deploy_set_config_and_set_root_WRONG_MULTISIG() -> (
     let op1_hash = hash_op(op1);
     let op2_hash = hash_op(op2);
 
-    let metadata_hash = hash_metadata(metadata, valid_until);
+    let metadata_hash = hash_metadata(metadata);
 
     // create merkle tree
     let (root, metadata_proof, ops_proof) = merkle_root(array![op1_hash, op2_hash, metadata_hash]);
diff --git a/contracts/src/tests/test_mcms/utils.cairo b/contracts/src/tests/test_mcms/utils.cairo
index 226eb9c20..10854aa4a 100644
--- a/contracts/src/tests/test_mcms/utils.cairo
+++ b/contracts/src/tests/test_mcms/utils.cairo
@@ -264,7 +264,7 @@ fn set_root_args(
     let op1_hash = hash_op(op1);
     let op2_hash = hash_op(op2);
 
-    let metadata_hash = hash_metadata(metadata, valid_until);
+    let metadata_hash = hash_metadata(metadata);
 
     // create merkle tree
     let (root, metadata_proof, ops_proof) = merkle_root(array![op1_hash, op2_hash, metadata_hash]);