diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 36d563f..122d5c7 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -256,8 +256,9 @@
 	if (timr->it.real.interval.tv64 == 0)
 		return;
 
-	timr->it_overrun += hrtimer_forward(timer, timer->base->get_time(),
-					    timr->it.real.interval);
+	timr->it_overrun += (unsigned int) hrtimer_forward(timer,
+						timer->base->get_time(),
+						timr->it.real.interval);
 
 	timr->it_overrun_last = timr->it_overrun;
 	timr->it_overrun = -1;
@@ -386,7 +387,7 @@
 					now = ktime_add(now, kj);
 			}
 #endif
-			timr->it_overrun +=
+			timr->it_overrun += (unsigned int)
 				hrtimer_forward(timer, now,
 						timr->it.real.interval);
 			ret = HRTIMER_RESTART;
@@ -662,7 +663,7 @@
 	 */
 	if (iv.tv64 && (timr->it_requeue_pending & REQUEUE_PENDING ||
 	    (timr->it_sigev_notify & ~SIGEV_THREAD_ID) == SIGEV_NONE))
-		timr->it_overrun += hrtimer_forward(timer, now, iv);
+		timr->it_overrun += (unsigned int) hrtimer_forward(timer, now, iv);
 
 	remaining = ktime_sub(timer->expires, now);
 	/* Return 0 only, when the timer is expired and not pending */