--- a/media/libnestegg/src/nestegg.c
+++ b/media/libnestegg/src/nestegg.c
@@ -2072,17 +2072,17 @@ nestegg_duration(nestegg * ctx, uint64_t
   uint64_t tc_scale;
   double unscaled_duration;
 
   if (ne_get_float(ctx->segment.info.duration, &unscaled_duration) != 0)
     return -1;
 
   tc_scale = ne_get_timecode_scale(ctx);
 
-  if (unscaled_duration < 0 || unscaled_duration > UINT64_MAX / tc_scale)
+  if (unscaled_duration < 0 || unscaled_duration > UINT64_MAX / (double)tc_scale)
     return -1;
 
   *duration = (uint64_t) (unscaled_duration * tc_scale);
   return 0;
 }
 
 int
 nestegg_tstamp_scale(nestegg * ctx, uint64_t * scale)