diff --git a/kernel/model/process.go b/kernel/model/process.go
index f69ec6c85..05e9397ca 100644
--- a/kernel/model/process.go
+++ b/kernel/model/process.go
@@ -119,9 +119,10 @@ func getAttachedUIProcCount() (ret int) {
 
 // getUIProcCount 获取 UI 进程数。
 func getUIProcCount() (ret int) {
+	pid := os.Getpid()
 	procs, _ := goPS.Processes()
 	for _, proc := range procs {
-		if proc.Pid() == os.Getpid() {
+		if proc.Pid() == pid {
 			continue
 		}