diff --git a/internal/state/store.go b/internal/state/store.go
index 2d2e4dc81..d592016f6 100644
--- a/internal/state/store.go
+++ b/internal/state/store.go
@@ -2,6 +2,7 @@ package state
 
 import (
 	"bytes"
+	"encoding/binary"
 	"errors"
 	"fmt"
 
@@ -59,6 +60,7 @@ func abciResponsesKey(height int64) []byte {
 
 // stateKey should never change after being set in init()
 var stateKey []byte
+var tmpABCIKey []byte
 
 func init() {
 	var err error
@@ -66,6 +68,12 @@ func init() {
 	if err != nil {
 		panic(err)
 	}
+	// temporary extra key before consensus param protos are regenerated
+	// TODO(wbanfield) remove in next PR
+	tmpABCIKey, err = orderedcode.Append(nil, int64(10000))
+	if err != nil {
+		panic(err)
+	}
 }
 
 //----------------------
@@ -137,6 +145,12 @@ func (store dbStore) loadState(key []byte) (state State, err error) {
 	if err != nil {
 		return state, err
 	}
+	buf, err = store.db.Get(tmpABCIKey)
+	if err != nil {
+		return state, err
+	}
+	h, _ := binary.Varint(buf)
+	sm.ConsensusParams.ABCI.VoteExtensionsEnableHeight = h
 
 	return *sm, nil
 }
@@ -181,6 +195,11 @@ func (store dbStore) save(state State, key []byte) error {
 	if err := batch.Set(key, stateBz); err != nil {
 		return err
 	}
+	bz := make([]byte, 5)
+	binary.PutVarint(bz, state.ConsensusParams.ABCI.VoteExtensionsEnableHeight)
+	if err := batch.Set(tmpABCIKey, bz); err != nil {
+		return err
+	}
 
 	return batch.WriteSync()
 }