diff --git a/Modules.md b/Modules.md
index e6d9a76..863e649 100644
--- a/Modules.md
+++ b/Modules.md
@@ -92,6 +92,8 @@ composer install --no-dev
 
 # Archive Repertory (we installed version 3.15.12.3)
 
+Required if 3d json files contain links to external images
+
 ```
 cd ./modules
 wget https://github.com/Daniel-KM/Omeka-S-module-ArchiveRepertory/archive/refs/heads/master.zip