diff --git a/packages/react/src/components/InlineCheckbox/InlineCheckbox.js b/packages/react/src/components/InlineCheckbox/InlineCheckbox.js
index d956dc7f520e..90c60cb16da8 100644
--- a/packages/react/src/components/InlineCheckbox/InlineCheckbox.js
+++ b/packages/react/src/components/InlineCheckbox/InlineCheckbox.js
@@ -46,7 +46,6 @@ const InlineCheckbox = React.forwardRef(function InlineCheckbox(
 
   if (indeterminate) {
     inputProps.checked = false;
-    inputProps['aria-checked'] = 'mixed';
   }
 
   useEffect(() => {