diff --git a/pkg/mcclient/options/compute/host.go b/pkg/mcclient/options/compute/host.go
index b8f5469615..36eb89c297 100644
--- a/pkg/mcclient/options/compute/host.go
+++ b/pkg/mcclient/options/compute/host.go
@@ -138,7 +138,7 @@ func (o *HostAutoMigrateOnHostDownOptions) Params() (jsonutils.JSONObject, error
 type HostSetCommitBoundOptions struct {
 	options.BaseIdOptions
 	CpuCmtbound *float32 `help:"Cpu commit bound"`
-	MemCmtBound *float32 `help:"Mem commit bound"`
+	MemCmtbound *float32 `help:"Mem commit bound"`
 }
 
 func (o *HostSetCommitBoundOptions) Params() (jsonutils.JSONObject, error) {