diff --git a/api/api_types.go b/api/api_types.go
index 1b8c89a21..30faea086 100644
--- a/api/api_types.go
+++ b/api/api_types.go
@@ -448,6 +448,8 @@ type Block struct {
 	comettypes.Header `json:"header"`
 	Hash              types.HexBytes `json:"hash" `
 	TxCount           int64          `json:"txCount"`
+	// Data is not used anymore but kept here for a hotfix
+	Data comettypes.Data `json:"data"`
 }
 
 // BlockList is used to return a paginated list to the client
diff --git a/api/chain.go b/api/chain.go
index 1b4d5ca14..d22572162 100644
--- a/api/chain.go
+++ b/api/chain.go
@@ -929,6 +929,10 @@ func (a *API) chainBlockByHeightHandler(_ *apirest.APIdata, ctx *httprouter.HTTP
 	if err != nil {
 		return ErrIndexerQueryFailed.WithErr(err)
 	}
+	dummyTxs := comettypes.Txs{}
+	for i := int64(0); i < txcount; i++ {
+		dummyTxs = append(dummyTxs, comettypes.Tx{})
+	}
 	block := &Block{
 		Header: comettypes.Header{
 			ChainID:         idxblock.ChainID,
@@ -941,6 +945,9 @@ func (a *API) chainBlockByHeightHandler(_ *apirest.APIdata, ctx *httprouter.HTTP
 		},
 		Hash:    idxblock.Hash,
 		TxCount: txcount,
+		Data: comettypes.Data{
+			Txs: dummyTxs,
+		},
 	}
 	data, err := json.Marshal(block)
 	if err != nil {