diff --git a/app/src/protyle/render/av/render.ts b/app/src/protyle/render/av/render.ts
index 1f1a9aabf..a214f3fb4 100644
--- a/app/src/protyle/render/av/render.ts
+++ b/app/src/protyle/render/av/render.ts
@@ -134,7 +134,7 @@ export const avRender = (element: Element, protyle: IProtyle, cb?: () => void, v
                     }
                     tableHTML += `<div class="av__cell av__cell--header" data-col-id="${column.id}"  draggable="true" 
 data-icon="${column.icon}" data-dtype="${column.type}" data-wrap="${column.wrap}" data-pin="${column.pin}" 
-data-desc="${escapeAttr(column.desc)}" data-position="top"
+data-desc="${escapeAttr(column.desc)}" 
 style="width: ${column.width || "200px"};">
     ${column.icon ? unicode2Emoji(column.icon, "av__cellheadericon", true) : `<svg class="av__cellheadericon"><use xlink:href="#${getColIconByType(column.type)}"></use></svg>`}
     <span class="av__celltext fn__flex-1">${escapeHtml(column.name)}</span>