diff --git a/pkg/hostman/guestman/qemu-kvmhelper.go b/pkg/hostman/guestman/qemu-kvmhelper.go
index b027622e23..ebfeaf02a5 100644
--- a/pkg/hostman/guestman/qemu-kvmhelper.go
+++ b/pkg/hostman/guestman/qemu-kvmhelper.go
@@ -331,10 +331,12 @@ func (s *SKVMGuestInstance) extraOptions() string {
 		case *jsonutils.JSONArray:
 			for i := 0; i < jsonV.Size(); i++ {
 				vAtI, _ := jsonV.GetAt(i)
-				cmd += fmt.Sprintf(" -%s %s", k, vAtI.String())
+				vStr, _ := vAtI.GetString()
+				cmd += fmt.Sprintf(" -%s %s", k, vStr)
 			}
 		default:
-			cmd += fmt.Sprintf(" -%s %s", k, v.String())
+			vstr, _ := v.GetString()
+			cmd += fmt.Sprintf(" -%s %s", k, vstr)
 		}
 	}
 	return cmd
diff --git a/pkg/hostman/guestman/qemu/generate.go b/pkg/hostman/guestman/qemu/generate.go
index 8336df46f8..1605d7275e 100644
--- a/pkg/hostman/guestman/qemu/generate.go
+++ b/pkg/hostman/guestman/qemu/generate.go
@@ -862,11 +862,6 @@ func GenerateStartOptions(
 	// pidfile
 	opts = append(opts, drvOpt.Pidfile(input.PidFilePath))
 
-	// extra options
-	if len(input.ExtraOptions) != 0 {
-		opts = append(opts, input.ExtraOptions...)
-	}
-
 	// qga
 	// opts = append(opts, drvOpt.QGA(input.HomeDir)...)
 	if input.GuestDesc.Qga != nil {
@@ -891,5 +886,10 @@ func GenerateStartOptions(
 		opts = append(opts, generatePvpanicDeviceOption(input.GuestDesc.Pvpanic))
 	}
 
+	// move extra options to end of cmdline
+	if len(input.ExtraOptions) != 0 {
+		opts = append(opts, input.ExtraOptions...)
+	}
+
 	return strings.Join(opts, " "), nil
 }