diff --git a/scripts/find-runtime-roots.pl.in b/scripts/find-runtime-roots.pl.in
index 91520fe4ea..11c96e8b23 100644
--- a/scripts/find-runtime-roots.pl.in
+++ b/scripts/find-runtime-roots.pl.in
@@ -43,7 +43,7 @@ sub readProc {
 
 
 sub lsof {
-    return unless open LSOF, "lsof -n -w -F n |";
+    return unless open LSOF, "lsof -n -w -F n 2> /dev/null |";
 
     while (<LSOF>) {
         next unless /^n (\/ .*)$/x;