diff --git a/src/models/config/tests/mod.rs b/src/models/config/tests/mod.rs
index 88e89516..bb90469d 100644
--- a/src/models/config/tests/mod.rs
+++ b/src/models/config/tests/mod.rs
@@ -1,6 +1,5 @@
 use super::*;
 use crate::boc::BocRepr;
-use crate::models::ShardStateUnsplit;
 use crate::prelude::Boc;
 
 #[cfg(not(feature = "tycho"))]
@@ -336,7 +335,7 @@ fn create_config() {
 #[cfg(not(feature = "tycho"))]
 #[test]
 fn validator_subset() {
-    use crate::models::ShardIdent;
+    use crate::models::{ShardIdent, ShardStateUnsplit};
 
     let master_state =
         BocRepr::decode::<ShardStateUnsplit, _>(&include_bytes!("test_state_2_master.boc"))
diff --git a/src/models/shard/shard_extra.rs b/src/models/shard/shard_extra.rs
index cfbd3b2b..e0fcf480 100644
--- a/src/models/shard/shard_extra.rs
+++ b/src/models/shard/shard_extra.rs
@@ -194,30 +194,35 @@ pub struct ValidatorBaseInfo {
 ///     prev_config_round:uint32
 ///     genesis_round:uint32
 ///     genesis_millis:uint64
+///     prev_shuffle_mc_validators:Bool
 ///     = ConsensusInfo;
 /// ```
 #[derive(Default, Debug, Copy, Clone, Eq, PartialEq, Store, Load)]
 pub struct ConsensusInfo {
     /// The most recent round from which the mempool session starts.
-    pub config_update_round: u32,
+    pub vset_switch_round: u32,
 
     /// The round from which the previous mempool session was started.
-    pub prev_config_round: u32,
+    pub prev_vset_switch_round: u32,
 
     /// Mempool genesis round (affects the overlay id).
     pub genesis_round: u32,
 
     /// Mempool genesis generation timestamp in milliseconds (affects the overlay id).
     pub genesis_millis: u64,
+
+    /// Previous state of the `shuffle_mc_validators` flags.
+    pub prev_shuffle_mc_validators: bool,
 }
 
 impl ConsensusInfo {
     /// Initial consensus info state.
     pub const ZEROSTATE: Self = Self {
-        config_update_round: 0,
-        prev_config_round: 0,
+        vset_switch_round: 0,
+        prev_vset_switch_round: 0,
         genesis_round: 0,
         genesis_millis: 0,
+        prev_shuffle_mc_validators: false,
     };
 
     /// Returns whether this info corresponds to the zerostate info.