diff --git a/base b/base
index 32af1b850..78204b02f 160000
--- a/base
+++ b/base
@@ -1 +1 @@
-Subproject commit 32af1b85073a9183a9235fa2ebbe67799714fe46
+Subproject commit 78204b02feb4e7b00d110626634eb8c00e1d503b
diff --git a/plugins/statistics.koplugin/main.lua b/plugins/statistics.koplugin/main.lua
index 77918fe6b..48954d0de 100644
--- a/plugins/statistics.koplugin/main.lua
+++ b/plugins/statistics.koplugin/main.lua
@@ -1240,7 +1240,7 @@ function ReaderStatistics:getCurrentStat(id_book)
     -- NOTE: But, as the "Average time per page" entry is already re-using self.avg_time,
     --       which is computed slightly differently (c.f., insertDB), we'll be using this tweaked book read time
     --       to compute the other time-based statistics...
-    local book_read_pages, book_read_time = self:getPageTimeTotalStats(id_book)
+    local _, book_read_time = self:getPageTimeTotalStats(id_book)
 
     if total_time_book == nil then
         total_time_book = 0