diff --git a/koreader-base b/koreader-base
index cc7f26684..4e13692e4 160000
--- a/koreader-base
+++ b/koreader-base
@@ -1 +1 @@
-Subproject commit cc7f266844153ec09a891e16534223e8efda2f5d
+Subproject commit 4e13692e4818b86b7c4f34360cf7f9d78b6c17a6