diff --git a/frontend/apps/reader/modules/readertoc.lua b/frontend/apps/reader/modules/readertoc.lua
index 516faa88c..6cafbeed9 100644
--- a/frontend/apps/reader/modules/readertoc.lua
+++ b/frontend/apps/reader/modules/readertoc.lua
@@ -53,6 +53,7 @@ end
 
 function ReaderToc:onUpdateToc()
     self.toc = nil
+    self.ticks = {}
     return true
 end