diff --git a/frontend/src/pages/cases/EditableField.tsx b/frontend/src/pages/cases/EditableField.tsx
index f84b879..7211d68 100644
--- a/frontend/src/pages/cases/EditableField.tsx
+++ b/frontend/src/pages/cases/EditableField.tsx
@@ -33,7 +33,8 @@ function formatDisplayValue(field: FieldConfig, value: unknown): string {
   if (field.type === 'date') return formatDisplayDate(value as string | null)
   if (field.type === 'boolean') return formatDisplayBoolean(value)
   if (field.type === 'select' && field.options) {
-    const opt = field.options.find((o) => o.value === (value ?? ''))
+    const matchVal = value || '__none__'
+    const opt = field.options.find((o) => o.value === matchVal)
     return opt?.label || (value as string) || '–'
   }
   return (value as string) || '–'
@@ -93,8 +94,8 @@ export function EditableField({ field, value, editable, onChange }: EditableFiel
         )}
         {field.type === 'select' && field.options && (
           <Select
-            value={(value as string) ?? ''}
-            onValueChange={(v) => handleChange(v || null)}
+            value={(value as string) || '__none__'}
+            onValueChange={(v) => handleChange(v === '__none__' ? null : v)}
           >
             <SelectTrigger className="h-8 text-sm">
               <SelectValue placeholder="Auswählen..." />
diff --git a/frontend/src/pages/cases/fieldConfig.ts b/frontend/src/pages/cases/fieldConfig.ts
index 9afe2a7..fbab4d6 100644
--- a/frontend/src/pages/cases/fieldConfig.ts
+++ b/frontend/src/pages/cases/fieldConfig.ts
@@ -18,7 +18,7 @@ export interface SectionConfig {
 }
 
 const ANREDE_OPTIONS = [
-  { value: '', label: '–' },
+  { value: '__none__', label: '–' },
   { value: 'Herr', label: 'Herr' },
   { value: 'Frau', label: 'Frau' },
   { value: 'Divers', label: 'Divers' },