diff --git a/scripts/cvs-update.sh b/scripts/cvs-update.sh
index 3ab8b17f77..fb8ea28833 100755
--- a/scripts/cvs-update.sh
+++ b/scripts/cvs-update.sh
@@ -16,7 +16,7 @@ for m in \
   ; do
   if test -d $m; then
     cd $m
-    cvs update -d
+    cvs update -dP
     if test $? -ne 0
     then
       FAILURE="$FAILURE$m: update\n"