diff --git a/components/lib/multiselect/MultiSelectHeader.js b/components/lib/multiselect/MultiSelectHeader.js
index bc60ebc61d..dd19d54e72 100644
--- a/components/lib/multiselect/MultiSelectHeader.js
+++ b/components/lib/multiselect/MultiSelectHeader.js
@@ -84,13 +84,6 @@ export const MultiSelectHeader = React.memo((props) => {
     const filterElement = createFilterElement();
     const selectAllId = props.id ? props.id + '_selectall' : UniqueComponentId();
 
-    const headerCheckboxProps = mergeProps(
-        {
-            className: 'p-multiselect-select-all p-checkbox-icon p-c'
-        },
-        props.ptm('headerCheckbox')
-    );
-
     const headerSelectAllLabelProps = mergeProps(
         {
             for: selectAllId,