diff --git a/collect/resh-collect.go b/collect/resh-collect.go
index 24ce8f6..07cd248 100644
--- a/collect/resh-collect.go
+++ b/collect/resh-collect.go
@@ -50,7 +50,7 @@ func main() {
 	term := flag.String("term", "", "$TERM")
 
 	// non-posix
-	pid := flag.Int("pid", -1, "$PID")
+	pid := flag.Int("pid", -1, "$$")
 	sessionPid := flag.Int("sessionPid", -1, "$$ at session start")
 	shlvl := flag.Int("shlvl", -1, "$SHLVL")
 
diff --git a/common/resh-common.go b/common/resh-common.go
index 32d701f..70727fa 100644
--- a/common/resh-common.go
+++ b/common/resh-common.go
@@ -26,7 +26,6 @@ type Record struct {
 	RealPwdAfter string `json:"realPwdAfter"`
 	Pid          int    `json:"pid"`
 	SessionPid   int    `json:"sessionPid"`
-	WindowId     int    `json:"windowId"`
 	Host         string `json:"host"`
 	Hosttype     string `json:"hosttype"`
 	Ostype       string `json:"ostype"`