diff --git a/handler/fetchself/fetch.go b/handler/fetchself/fetch.go
index c1672ab..e46b54d 100644
--- a/handler/fetchself/fetch.go
+++ b/handler/fetchself/fetch.go
@@ -2,6 +2,7 @@ package fetchself
 
 import (
 	"fmt"
+	"log"
 	"os/exec"
 	"strings"
 
@@ -91,6 +92,7 @@ func fetchSelf(msg model.Message) (reply model.Reply) {
 		if _, err := exec.LookPath(cmd); err == nil {
 			info, err := parseSystemInfo(cmd)
 			if err != nil {
+				log.Println("parseSystemInfo failed", err)
 				return
 			}
 			reply.FromMsg = msg