diff --git a/lustre/tests/conf-sanity.sh b/lustre/tests/conf-sanity.sh
index bece9ff38ebffbd22ee4ad96c8edd53002a41852..f02c4b5eb8b6ef5ca08977168c1424358d61aff8 100644
--- a/lustre/tests/conf-sanity.sh
+++ b/lustre/tests/conf-sanity.sh
@@ -921,7 +921,7 @@ set_and_check() {
 	echo "Setting $PARAM from $ORIG to $FINAL"
 	do_facet mds "$LCTL conf_param $PARAM=$FINAL" || error conf_param failed
 	local RESULT
-	local MAX=20
+	local MAX=90
 	local WAIT=0
 	while [ 1 ]; do
 	    sleep 5