diff --git a/tag_database b/tag_database
index 2a08c84e7..355c34070 100644
--- a/tag_database
+++ b/tag_database
@@ -173,7 +173,7 @@ isUndefined:type,beginner
 isUpperCase:string,utility,beginner
 isValidJSON:type,json,intermediate
 isWeekday:date,beginner
-isWeekend:uncategorized
+isWeekend:date,beginner
 isWritableStream:node,type,intermediate
 join:array,intermediate
 JSONtoCSV:array,string,object,advanced