diff --git a/cli/filplus.go b/cli/filplus.go
index 7b876ea32..717fa0d83 100644
--- a/cli/filplus.go
+++ b/cli/filplus.go
@@ -394,6 +394,11 @@ var filplusListClaimsCmd = &cli.Command{
 			Name:  "expired",
 			Usage: "list only expired claims",
 		},
+		&cli.BoolFlag{
+			Name:  "json",
+			Usage: "output results in json format",
+			Value: false,
+		},
 	},
 	Action: func(cctx *cli.Context) error {
 		if cctx.NArg() > 1 {
diff --git a/documentation/en/cli-lotus.md b/documentation/en/cli-lotus.md
index 36f1e1059..28338393f 100644
--- a/documentation/en/cli-lotus.md
+++ b/documentation/en/cli-lotus.md
@@ -1297,6 +1297,7 @@ USAGE:
 
 OPTIONS:
    --expired   list only expired claims (default: false)
+   --json      output results in json format (default: false)
    --help, -h  show help
 ```