diff --git a/lib/components/form/element/combobox.js b/lib/components/form/element/combobox.js
index 2740dd77..ae482a59 100644
--- a/lib/components/form/element/combobox.js
+++ b/lib/components/form/element/combobox.js
@@ -485,7 +485,7 @@ class Combobox extends React.Component {
 
         const formatOption = (option) => ({
             focused: false,
-            isSelected: option.selected && (isEqual(option.value, currentValue) || !!(alreadySelected.find((item) => item.value === option.value))),
+            isSelected: option.selected && (isEqual(option.value, currentValue) || !!alreadySelected.find((item) => item.value === option.value)),
             ...option,
         });
 
@@ -551,7 +551,7 @@ class Combobox extends React.Component {
         const deselectOption = (initialOption) => {
             const option = initialOption;
             const isSelected = isEqual(option.value, val);
-            option.isSelected = isSelected || !!(this.props.alreadySelectedOptions.find((optionItem) => optionItem.value === option.value));
+            option.isSelected = isSelected || !!this.props.alreadySelectedOptions.find((optionItem) => optionItem.value === option.value);
 
             return option;
         };
@@ -859,8 +859,7 @@ class Combobox extends React.Component {
         const formatOption = (option) => ({
             focused: false,
             isSelected:
-                isEqual(option.value ? option.value.toUpperCase : '', value.toUpperCase()) ||
-                !!(this.props.alreadySelectedOptions.find((optionItem) => optionItem.value === option.value)),
+                isEqual(option.value ? option.value.toUpperCase : '', value.toUpperCase()) || !!this.props.alreadySelectedOptions.find((optionItem) => optionItem.value === option.value),
             ...option,
         });