diff --git a/ReactiveObjC/RACQueueScheduler.m b/ReactiveObjC/RACQueueScheduler.m
index d9dd189b8..bc6e8d1b5 100644
--- a/ReactiveObjC/RACQueueScheduler.m
+++ b/ReactiveObjC/RACQueueScheduler.m
@@ -48,8 +48,8 @@ + (dispatch_time_t)wallTimeWithDate:(NSDate *)date {
 	double frac = modf(date.timeIntervalSince1970, &seconds);
 
 	struct timespec walltime = {
-		.tv_sec = (time_t)fmin(fmax(seconds, LONG_MIN), LONG_MAX),
-		.tv_nsec = (long)fmin(fmax(frac * NSEC_PER_SEC, LONG_MIN), LONG_MAX)
+		.tv_sec = (time_t)fmin(fmax(seconds, LONG_MIN), (double)LONG_MAX),
+		.tv_nsec = (long)fmin(fmax(frac * NSEC_PER_SEC, LONG_MIN), (double)LONG_MAX)
 	};
 
 	return dispatch_walltime(&walltime, 0);