diff --git a/lib/EbookDownloadSummary.php b/lib/EbookDownloadSummary.php
index 951486e6..d7679331 100644
--- a/lib/EbookDownloadSummary.php
+++ b/lib/EbookDownloadSummary.php
@@ -5,7 +5,9 @@ use Safe\DateTimeImmutable;
 class EbookDownloadSummary{
 	public int $EbookId;
 	public DateTimeImmutable $Date;
+	/** The number of downloads by non-bot clients on the given date. */
 	public int $DownloadCount = 0;
+	/** The number of downloads by bot clients on the given date. */
 	public int $BotDownloadCount = 0;
 
 	public function __construct(int $ebookId, DateTimeImmutable $date){
diff --git a/scripts/recompute-ebook-downloads b/scripts/recompute-ebook-downloads
index d21dcda4..7ad58fef 100755
--- a/scripts/recompute-ebook-downloads
+++ b/scripts/recompute-ebook-downloads
@@ -35,9 +35,9 @@ foreach($downloadDates as $date){
 Db::Query('
 	UPDATE Ebooks e
 	left join (
-		select EbookId, sum(DownloadCount) AS DownloadsPast30Days
+		select EbookId, sum(DownloadCount) as DownloadsPast30Days
 		from EbookDownloadSummaries
-		where Date >= curdate() - interval 29 day
+		where Date >= date(utc_timetamp()) - interval 30 day
 		group by EbookId
 	) s on e.EbookId = s.EbookId
 	set e.DownloadsPast30Days = coalesce(s.DownloadsPast30Days, 0)
@@ -46,7 +46,7 @@ Db::Query('
 Db::Query('
 	UPDATE Ebooks e
 	left join (
-		select EbookId, sum(DownloadCount) AS DownloadsTotal
+		select EbookId, sum(DownloadCount) as DownloadsTotal
 		from EbookDownloadSummaries
 		group by EbookId
 	) s on e.EbookId = s.EbookId