diff --git a/pkg/hostman/isolated_device/usb.go b/pkg/hostman/isolated_device/usb.go
index bfc4ed29f9..8515fa26fc 100644
--- a/pkg/hostman/isolated_device/usb.go
+++ b/pkg/hostman/isolated_device/usb.go
@@ -16,6 +16,7 @@ package isolated_device
 
 import (
 	"fmt"
+	"strconv"
 	"strings"
 
 	"yunion.io/x/jsonutils"
@@ -54,16 +55,24 @@ func GetUSBDevId(vendorId, devId, bus, addr string) string {
 	return fmt.Sprintf("dev_%s_%s-%s_%s", vendorId, devId, bus, addr)
 }
 
-func getUSBDevQemuOptions(vendorId, deviceId string, bus, addr string) map[string]interface{} {
+func getUSBDevQemuOptions(vendorId, deviceId string, bus, addr string) (map[string]interface{}, error) {
 	id := GetUSBDevId(vendorId, deviceId, bus, addr)
+	busI, err := strconv.Atoi(bus)
+	if err != nil {
+		return nil, errors.Wrapf(err, "parse bus to int %q", bus)
+	}
+	addrI, err := strconv.Atoi(addr)
+	if err != nil {
+		return nil, errors.Wrapf(err, "parse addr to int %q", bus)
+	}
 	return map[string]interface{}{
 		"id":        id,
 		"bus":       "usb.0",
 		"vendorid":  fmt.Sprintf("0x%s", vendorId),
 		"productid": fmt.Sprintf("0x%s", deviceId),
-		"hostbus":   bus,
-		"hostaddr":  addr,
-	}
+		"hostbus":   fmt.Sprintf("%d", busI),
+		"hostaddr":  fmt.Sprintf("%d", addrI),
+	}, nil
 }
 
 func GetUSBDevQemuOptions(vendorDevId string, addr string) (map[string]interface{}, error) {
@@ -81,7 +90,7 @@ func GetUSBDevQemuOptions(vendorDevId string, addr string) (map[string]interface
 	hostBus := addrParts[0]
 	hostAddr := addrParts[1]
 
-	return getUSBDevQemuOptions(vendorId, productId, hostBus, hostAddr), nil
+	return getUSBDevQemuOptions(vendorId, productId, hostBus, hostAddr)
 }
 
 func (dev *sUSBDevice) GetKernelDriver() (string, error) {
diff --git a/pkg/hostman/isolated_device/usb_test.go b/pkg/hostman/isolated_device/usb_test.go
index 39b118d67e..472bec4cc6 100644
--- a/pkg/hostman/isolated_device/usb_test.go
+++ b/pkg/hostman/isolated_device/usb_test.go
@@ -142,3 +142,42 @@ func Test_isUSBLinuxRootHub(t *testing.T) {
 		})
 	}
 }
+
+func Test_getUSBDevQemuOptions(t *testing.T) {
+	type args struct {
+		vendorId string
+		deviceId string
+		bus      string
+		addr     string
+	}
+	tests := []struct {
+		name string
+		args args
+		want map[string]interface{}
+	}{
+		{
+			name: "",
+			args: args{
+				vendorId: "1d6b",
+				deviceId: "0001",
+				bus:      "001",
+				addr:     "009",
+			},
+			want: map[string]interface{}{
+				"id":        "dev_1d6b_0001-001_009",
+				"bus":       "usb.0",
+				"vendorid":  "0x1d6b",
+				"productid": "0x0001",
+				"hostbus":   "1",
+				"hostaddr":  "9",
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got, _ := getUSBDevQemuOptions(tt.args.vendorId, tt.args.deviceId, tt.args.bus, tt.args.addr); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("getUSBDevQemuOptions() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}