diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
index 8e50bfd4..d0e8244 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
@@ -5,3 +5,4 @@
 rcutree.kthread_prio=2
 threadirqs
 rcutree.use_softirq=0
+rcutorture.preempt_duration=100