diff --git a/400_xowa/src/gplx/xowa/addons/wikis/directorys/dbs/Xowdir_wiki_json.java b/400_xowa/src/gplx/xowa/addons/wikis/directorys/dbs/Xowdir_wiki_json.java
index e8d04d9e9..79e221757 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/directorys/dbs/Xowdir_wiki_json.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/directorys/dbs/Xowdir_wiki_json.java
@@ -27,7 +27,7 @@ public class Xowdir_wiki_json {
 
 		wtr.Nde_bgn("core");
 		wtr.Kv_str("name", name);
-		wtr.Kv_str("main_page", main_page);
+		wtr.Kv_str("mainpage", main_page);
 		wtr.Nde_end();
 
 		wtr.Doc_nde_end();
@@ -37,7 +37,7 @@ public class Xowdir_wiki_json {
 	public static Xowdir_wiki_json New_by_json(Json_parser json_parser, String json) {
 		Json_doc jdoc = json_parser.Parse(json);
 		String name      = jdoc.Get_val_as_str_or(Bry_.Ary("core", "name"), "");
-		String main_page = jdoc.Get_val_as_str_or(Bry_.Ary("core", "main_page"), "");
+		String main_page = jdoc.Get_val_as_str_or(Bry_.Ary("core", "mainpage"), "");
 		return new Xowdir_wiki_json(name, main_page);
 	}
 	public static Xowdir_wiki_json New_empty() {
diff --git a/400_xowa/src/gplx/xowa/addons/wikis/directorys/specials/items/Xowdir_item_doc.java b/400_xowa/src/gplx/xowa/addons/wikis/directorys/specials/items/Xowdir_item_doc.java
index 939168f2c..4978bd5ac 100644
--- a/400_xowa/src/gplx/xowa/addons/wikis/directorys/specials/items/Xowdir_item_doc.java
+++ b/400_xowa/src/gplx/xowa/addons/wikis/directorys/specials/items/Xowdir_item_doc.java
@@ -32,7 +32,7 @@ public class Xowdir_item_doc implements Mustache_doc_itm {
 		else if	(String_.Eq(key, "domain"))			bfr.Add_str_u8(domain);
 		else if	(String_.Eq(key, "name"))			bfr.Add_str_u8(name);
 		else if	(String_.Eq(key, "dir"))			bfr.Add_str_u8(dir);
-		else if	(String_.Eq(key, "main_page"))		bfr.Add_str_u8(main_page);
+		else if	(String_.Eq(key, "mainpage"))		bfr.Add_str_u8(main_page);
 		else										return false;
 		return true;
 	}