diff --git a/packages/sanity/src/core/form/members/object/fields/PrimitiveField.tsx b/packages/sanity/src/core/form/members/object/fields/PrimitiveField.tsx
index 7da0cd55e8e..fed5ce45076 100644
--- a/packages/sanity/src/core/form/members/object/fields/PrimitiveField.tsx
+++ b/packages/sanity/src/core/form/members/object/fields/PrimitiveField.tsx
@@ -82,7 +82,7 @@ export function PrimitiveField(props: {
       id: member.field.id,
       ref: focusRef,
       onChange: handleNativeChange,
-      value: String(member.field.value || ''),
+      value: String(member.field.value ?? ''),
       readOnly: Boolean(member.field.readOnly),
       placeholder: member.field.schemaType.placeholder,
     }),