diff --git a/Automatic-output-splitting.md b/Automatic-output-splitting.md
index f00c44e..4dfe197 100644
--- a/Automatic-output-splitting.md
+++ b/Automatic-output-splitting.md
@@ -1,4 +1,6 @@
-Source directories/archives need to use one of three directory structures. 
+Source directories/archives need to use one of three directory structures.
+
+The most common issue is having a cover image and individual chapter folders on the same level. Move the cover image into the first chapter's folder, renaming as necessary to ensure it is first in the file order.
 
 Due to limitations of **KindleGen** and **Kindle** itself maximal size of output file is limited by KCC.
 Input will be automatically split into multiple _MOBI_ files if the correct file structure is used.