diff --git a/yazi-fm/src/lives/file.rs b/yazi-fm/src/lives/file.rs
index 615ea1ea..98aebb26 100644
--- a/yazi-fm/src/lives/file.rs
+++ b/yazi-fm/src/lives/file.rs
@@ -31,6 +31,7 @@ impl File {
 
 	pub(super) fn register(lua: &Lua) -> mlua::Result<()> {
 		lua.register_userdata_type::<Self>(|reg| {
+			reg.add_field_method_get("idx", |_, me| Ok(me.idx + 1));
 			reg.add_field_method_get("url", |lua, me| Url::cast(lua, me.url.clone()));
 			reg.add_field_method_get("cha", |lua, me| Cha::cast(lua, me.cha));
 			reg.add_field_method_get("link_to", |lua, me| {
diff --git a/yazi-fm/src/lives/tabs.rs b/yazi-fm/src/lives/tabs.rs
index 40f2ba3d..73f46f99 100644
--- a/yazi-fm/src/lives/tabs.rs
+++ b/yazi-fm/src/lives/tabs.rs
@@ -22,7 +22,7 @@ impl Tabs {
 
 	pub(super) fn register(lua: &Lua) -> mlua::Result<()> {
 		lua.register_userdata_type::<Self>(|reg| {
-			reg.add_field_method_get("idx", |_, me| Ok(me.idx));
+			reg.add_field_method_get("idx", |_, me| Ok(me.idx + 1));
 
 			reg.add_meta_method(MetaMethod::Len, |_, me, ()| Ok(me.len()));
 
diff --git a/yazi-plugin/preset/components/header.lua b/yazi-plugin/preset/components/header.lua
index f0f84bf4..8f02c035 100644
--- a/yazi-plugin/preset/components/header.lua
+++ b/yazi-plugin/preset/components/header.lua
@@ -51,7 +51,7 @@ function Header:tabs()
 		if THEME.manager.tab_width > 2 then
 			text = ya.truncate(text .. " " .. cx.tabs[i]:name(), THEME.manager.tab_width)
 		end
-		if i == cx.tabs.idx + 1 then
+		if i == cx.tabs.idx then
 			spans[#spans + 1] = ui.Span(" " .. text .. " "):style(THEME.manager.tab_active)
 		else
 			spans[#spans + 1] = ui.Span(" " .. text .. " "):style(THEME.manager.tab_inactive)