diff --git a/backend/src/api/statistics/statistics-api.ts b/backend/src/api/statistics/statistics-api.ts
index 837d0ae44..9df12d704 100644
--- a/backend/src/api/statistics/statistics-api.ts
+++ b/backend/src/api/statistics/statistics-api.ts
@@ -211,7 +211,7 @@ class StatisticsApi {
       CAST(avg(vsize_1800) as DOUBLE) as vsize_1800,
       CAST(avg(vsize_2000) as DOUBLE) as vsize_2000 \
       FROM statistics \
-      ${interval === 'ALL' ? '' : `WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`} \
+      ${interval === 'all' ? '' : `WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`} \
       GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
       ORDER BY statistics.added DESC;`;
   }
@@ -259,7 +259,7 @@ class StatisticsApi {
       vsize_1800,
       vsize_2000 \
       FROM statistics \
-      ${interval === 'ALL' ? '' : `WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`} \
+      ${interval === 'all' ? '' : `WHERE added BETWEEN DATE_SUB(NOW(), INTERVAL ${interval}) AND NOW()`} \
       GROUP BY UNIX_TIMESTAMP(added) DIV ${div} \
       ORDER BY statistics.added DESC;`;
   }
@@ -388,7 +388,7 @@ class StatisticsApi {
 
   public async $listAll(): Promise<OptimizedStatistic[]> {
     try {
-      const query = this.getQueryForDays(43200, 'ALL'); // 12h interval
+      const query = this.getQueryForDays(43200, 'all'); // 12h interval
       const [rows] = await DB.query({ sql: query, timeout: this.queryTimeout });
       return this.mapStatisticToOptimizedStatistic(rows as Statistic[]);
     } catch (e) {