diff --git a/doc/developer/api_zot.bb b/doc/developer/api_zot.bb
index ddca65b4d..a114c7c44 100644
--- a/doc/developer/api_zot.bb
+++ b/doc/developer/api_zot.bb
@@ -608,7 +608,7 @@ Optional:
 
 	application or network name to display with item
 
-- categories
+- category
 
 	comma separated categories for this item