diff --git a/NEWS.md b/NEWS.md
index fa9a4392..78405632 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,6 @@
 1.1.7 (DD//MM//YY)
 -----
+* Do not let /etc/services confuse FD checker (munin plugin)
 
 1.1.6 (19//02//13)
 -----
diff --git a/tools/munin/windshaft b/tools/munin/windshaft
index 187df71e..77adcb23 100755
--- a/tools/munin/windshaft
+++ b/tools/munin/windshaft
@@ -43,7 +43,7 @@ fi
 
 tmpreport="/tmp/checkfd.$$.txt"
 
-lsof -p $(echo "${pids}" | tr ' ' ',') > "${tmpreport}"
+lsof -Pp $(echo "${pids}" | tr ' ' ',') > "${tmpreport}"
 
 maxdb=0
 maxredis=0