diff --git a/kernel/fork.c b/kernel/fork.c
index 4207d5e5958b5af7bd8c2f9106e9ba304423d3bc..b5453a26655e2ad6ca9287b0b95c41d3b02d4cbc 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -893,6 +893,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
 
 #ifdef CONFIG_QOS_SCHED_DYNAMIC_AFFINITY
 	tsk->prefer_cpus = NULL;
+	tsk->se.dyn_affi_stats = NULL;
 #endif
 
 	setup_thread_stack(tsk, orig);