diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 116c2235ae7b6758f6f39bcf31d629443eacf730..50b76a5381f338b6b01b69c2594c8e33f97d82b3 100644
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -5093,7 +5093,7 @@ test_124a() {
         
         # Let's make sure that we really have some margin. Client checks
         # cached locks every 10 sec.
-        SLEEP=$((SLEEP+10))
+        SLEEP=$((SLEEP+20))
         log "Sleep ${SLEEP} sec"
         local SEC=0
         while ((SEC<$SLEEP)); do