diff --git a/frontend/src/component/common/NewConstraintAccordion/ConstraintAccordionEdit/ConstraintAccordionEditBody/RestrictiveLegalValues/RestrictiveLegalValues.tsx b/frontend/src/component/common/NewConstraintAccordion/ConstraintAccordionEdit/ConstraintAccordionEditBody/RestrictiveLegalValues/RestrictiveLegalValues.tsx
index a67ec83795..3d164a7f8b 100644
--- a/frontend/src/component/common/NewConstraintAccordion/ConstraintAccordionEdit/ConstraintAccordionEditBody/RestrictiveLegalValues/RestrictiveLegalValues.tsx
+++ b/frontend/src/component/common/NewConstraintAccordion/ConstraintAccordionEdit/ConstraintAccordionEditBody/RestrictiveLegalValues/RestrictiveLegalValues.tsx
@@ -159,6 +159,7 @@ export const RestrictiveLegalValues = ({
 
     const handleSearchKeyDown = (event: React.KeyboardEvent) => {
         if (event.key === 'Enter' && filteredValues.length > 0) {
+            event.preventDefault();
             const firstValue = filteredValues[0].value;
             onChange(firstValue);
         }