diff --git a/README.md b/README.md
index 8e15b7b..dc66a7f 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,6 @@ Include: https://github.com/oneclickvirt/gostun
 
 ## TODO
 
-- [ ] FreeBSD下获取不到CPU的型号，待修复
 - [ ] 检测GPU相关信息，可参考[ghw](https://github.com/jaypipes/ghw)
 - [ ] CPUCache的信息需要矫正
 - [ ] 纯IPV6环境下使用cdn反代获取平台信息
diff --git a/system/sysctl.go b/system/sysctl.go
index 29b4ac6..a901317 100644
--- a/system/sysctl.go
+++ b/system/sysctl.go
@@ -6,7 +6,7 @@ import (
 )
 
 func checkSysctlVersion() bool {
-	out, err := exec.Command("sysctl", "--version").Output()
+	out, err := exec.Command("sysctl", "-h").Output()
 	if err != nil {
 		return false
 	}