diff --git a/sdk/src/feature_set.rs b/sdk/src/feature_set.rs
index 6c8dc9a728..56c1a57bc6 100644
--- a/sdk/src/feature_set.rs
+++ b/sdk/src/feature_set.rs
@@ -166,6 +166,10 @@ pub mod spl_token_v2_set_authority_fix {
     solana_sdk::declare_id!("FToKNBYyiF4ky9s8WsmLBXHCht17Ek7RXaLZGHzzQhJ1");
 }
 
+pub mod demote_program_write_locks {
+    solana_sdk::declare_id!("3E3jV7v9VcdJL8iYZUMax9DiDno8j7EWUVbhm9RtShj2");
+}
+
 lazy_static! {
     /// Map of feature identifiers to user-visible description
     pub static ref FEATURE_NAMES: HashMap<Pubkey, &'static str> = [
@@ -206,6 +210,7 @@ lazy_static! {
         (libsecp256k1_0_5_upgrade_enabled::id(), "upgrade libsecp256k1 to v0.5.0"),
         (merge_nonce_error_into_system_error::id(), "merge NonceError into SystemError"),
         (spl_token_v2_set_authority_fix::id(), "spl-token set_authority fix"),
+        (demote_program_write_locks::id(), "demote program write locks to readonly #19593"),
         /*************** ADD NEW FEATURES HERE ***************/
     ]
     .iter()