diff --git a/x/storage/keeper/msg_server_post_file.go b/x/storage/keeper/msg_server_post_file.go
index d57f6273..934b4070 100644
--- a/x/storage/keeper/msg_server_post_file.go
+++ b/x/storage/keeper/msg_server_post_file.go
@@ -58,6 +58,7 @@ func (k msgServer) PostFile(goCtx context.Context, msg *types.MsgPostFile) (*typ
 			sdk.NewAttribute(types.AttributeKeySigner, msg.Creator),
 			sdk.NewAttribute(types.AttributeKeyContract, hex.EncodeToString(msg.Merkle)),
 			sdk.NewAttribute(types.AttributeKeyPayOnce, b),
+			sdk.NewAttribute(types.AttributeKeyStart, fmt.Sprintf("%d", ctx.BlockHeight())),
 		),
 	)
 
diff --git a/x/storage/types/events.go b/x/storage/types/events.go
index 930b0fd2..0cd1e69f 100644
--- a/x/storage/types/events.go
+++ b/x/storage/types/events.go
@@ -16,6 +16,7 @@ const (
 	AttributeKeySigner   = "signer" // sign storage deal
 	AttributeKeyContract = "file"
 	AttributeKeyPayOnce  = "pay_once"
+	AttributeKeyStart    = "start"
 
 	EventTypeJackalMessage = "jackal_message"
 )