diff --git a/koreader-base b/koreader-base
index 11a738de4..1570f78e6 160000
--- a/koreader-base
+++ b/koreader-base
@@ -1 +1 @@
-Subproject commit 11a738de463d3c3e9c776ab10a35447bb445d717
+Subproject commit 1570f78e6e538a3ebc0e9ababad501d6c3176d33