diff --git a/public/js/tabulator/filters/extendedHeaderFilter.js b/public/js/tabulator/filters/extendedHeaderFilter.js
index 6a995343f..5ffbb1ab7 100644
--- a/public/js/tabulator/filters/extendedHeaderFilter.js
+++ b/public/js/tabulator/filters/extendedHeaderFilter.js
@@ -146,7 +146,7 @@ export function tagHeaderFilter(headerValue, rowValue, rowData, filterParams)
 	if (Array.isArray(data))
 	{
 		combinedText = data
-			.filter(item => item?.done === false)
+			.filter(item => item?.done !== true)
 			.map(item => `${item?.beschreibung} ${item?.notiz}`)
 			.join(' ');
 	}