diff --git a/koreader-base b/koreader-base
index 6cb2c9c41..15b4d4a59 160000
--- a/koreader-base
+++ b/koreader-base
@@ -1 +1 @@
-Subproject commit 6cb2c9c41251134db2e1ceff7d39c28d1fc3f1a0
+Subproject commit 15b4d4a59c96afd5a6d0ec2f2b5cb5538628638c