diff --git a/kernel/sched.c b/kernel/sched.c
index f69c4a5361e3b8eae8f092d9718aa6d062924910..9bb7489ee64509eca180fe3cfe755db49b153702 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2648,9 +2648,9 @@ asmlinkage void __sched schedule(void)
 
 	schedstat_inc(rq, sched_cnt);
 	now = sched_clock();
-	if (likely((long long)now - prev->timestamp < NS_MAX_SLEEP_AVG)) {
+	if (likely((long long)(now - prev->timestamp) < NS_MAX_SLEEP_AVG)) {
 		run_time = now - prev->timestamp;
-		if (unlikely((long long)now - prev->timestamp < 0))
+		if (unlikely((long long)(now - prev->timestamp) < 0))
 			run_time = 0;
 	} else
 		run_time = NS_MAX_SLEEP_AVG;
@@ -2728,7 +2728,7 @@ asmlinkage void __sched schedule(void)
 
 	if (!rt_task(next) && next->activated > 0) {
 		unsigned long long delta = now - next->timestamp;
-		if (unlikely((long long)now - next->timestamp < 0))
+		if (unlikely((long long)(now - next->timestamp) < 0))
 			delta = 0;
 
 		if (next->activated == 1)