diff --git a/mm/ksm.c b/mm/ksm.c
index 0113f15..cf072c5 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1263,7 +1263,7 @@
 
 static int ksm_scan_thread(void *nothing)
 {
-	set_user_nice(current, 0);
+	set_user_nice(current, 5);
 
 	while (!kthread_should_stop()) {
 		if (ksm_run & KSM_RUN_MERGE) {