diff --git a/src/components/Autocomplete/components/ComboBox/ComboBox.tsx b/src/components/Autocomplete/components/ComboBox/ComboBox.tsx
index d38a79f0646..1be82993fa3 100644
--- a/src/components/Autocomplete/components/ComboBox/ComboBox.tsx
+++ b/src/components/Autocomplete/components/ComboBox/ComboBox.tsx
@@ -459,9 +459,7 @@ function assignOptionIds(
     (
       option: OptionDescriptor | ActionListItemDescriptor,
       optionIndex: number,
-    ) => {
-      option.id = `${comboBoxId}-${optionIndex}`;
-    },
+) => ({id: `${comboBoxId}-${optionIndex}`, ...option}),
   );
   return options;
 }