diff --git a/client/decoder.go b/client/decoder.go
index 330ee32d65..f850facdc4 100644
--- a/client/decoder.go
+++ b/client/decoder.go
@@ -6,7 +6,7 @@ import (
 )
 
 func DecodeData(data []byte) (pairs []types.StoreKVPair, err error) {
-	offset := 0
+	offset := 8
 	for offset < len(data) {
 		size, n := proto.DecodeVarint(data[offset:])
 		offset += n
diff --git a/versiondb/tmdb/store_test.go b/versiondb/tmdb/store_test.go
index 1a4a350c29..3ea5a9d660 100644
--- a/versiondb/tmdb/store_test.go
+++ b/versiondb/tmdb/store_test.go
@@ -6,6 +6,7 @@ import (
 
 	"github.com/cosmos/cosmos-sdk/codec"
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
+	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/crypto-org-chain/cronos/client"
 	"github.com/crypto-org-chain/cronos/versiondb"
 	"github.com/crypto-org-chain/cronos/x/cronos/types"
@@ -35,7 +36,9 @@ func TestFeed(t *testing.T) {
 			_, err = buf.Write(bz)
 			require.NoError(t, err)
 		}
-		pairs, err := client.DecodeData(buf.Bytes())
+		data := buf.Bytes()
+		prefix := sdk.Uint64ToBigEndian(uint64(len(data)))
+		pairs, err := client.DecodeData(append(prefix, data...))
 		require.NoError(t, err)
 		require.NotEmpty(t, pairs)
 		store := storeCreator()