diff --git a/Error-messages.md b/Error-messages.md
index e84b245..6920ea9 100644
--- a/Error-messages.md
+++ b/Error-messages.md
@@ -1,6 +1,7 @@
 ### Unsupported directory structure
 * Source directory/archive have the incorrect directory structure.
 * 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.
+* Alternatively, try the de-dupe cover option.
 * Check [[this|Automatic output splitting]] for more details.
 
 ### Failed to prepare a workspace