diff --git a/libs/temporal/temporal/superclock.h b/libs/temporal/temporal/superclock.h
index 369aed174a..06e769007d 100644
--- a/libs/temporal/temporal/superclock.h
+++ b/libs/temporal/temporal/superclock.h
@@ -30,7 +30,7 @@ typedef int64_t superclock_t;
 extern superclock_t superclock_ticks_per_second;
 
 static inline superclock_t superclock_to_samples (superclock_t s, int sr) { return int_div_round (s * sr, superclock_ticks_per_second); }
-static inline superclock_t samples_to_superclock (int samples, int sr) { return int_div_round (samples * superclock_ticks_per_second, superclock_t (sr)); }
+static inline superclock_t samples_to_superclock (int64_t samples, int sr) { return int_div_round (samples * superclock_ticks_per_second, superclock_t (sr)); }
 
 /* this needs to be updated per-thread at a suitable time */