diff --git a/backend/app/services/disclosure_service.py b/backend/app/services/disclosure_service.py
index 5854a5e..e4614ae 100644
--- a/backend/app/services/disclosure_service.py
+++ b/backend/app/services/disclosure_service.py
@@ -141,14 +141,15 @@ def revoke_disclosure(db: Session, request_id: int, user_id: int, *, admin: bool
 
 
 def reactivate_disclosure(db: Session, request_id: int) -> DisclosureRequest:
-    """Reactivate an expired/revoked disclosure by granting a new 24h window."""
+    """Reactivate an expired, revoked, or rejected disclosure with a new 24h window."""
     dr = db.query(DisclosureRequest).filter(DisclosureRequest.id == request_id).first()
     if not dr:
         raise ValueError("Disclosure request not found")
-    if dr.status != "approved":
-        raise ValueError("Only approved disclosures can be reactivated")
-    if dr.expires_at and dr.expires_at > _utcnow_naive():
+    if dr.status == "pending":
+        raise ValueError("Pending requests must be approved first")
+    if dr.status == "approved" and dr.expires_at and dr.expires_at > _utcnow_naive():
         raise ValueError("Disclosure is still active")
+    dr.status = "approved"
     dr.expires_at = _utcnow_naive() + timedelta(hours=24)
     db.commit()
     db.refresh(dr)
diff --git a/frontend/src/pages/DisclosuresPage.tsx b/frontend/src/pages/DisclosuresPage.tsx
index 24ffa33..3a3b87c 100644
--- a/frontend/src/pages/DisclosuresPage.tsx
+++ b/frontend/src/pages/DisclosuresPage.tsx
@@ -160,15 +160,26 @@ export function DisclosuresPage() {
                         </>
                       )}
                       {dr.status === 'rejected' && (
-                        <Button
-                          size="sm"
-                          variant="ghost"
-                          disabled={deleteMutation.isPending}
-                          onClick={() => deleteMutation.mutate(dr.id)}
-                        >
-                          <Trash2 className="size-4 mr-1" />
-                          Verwerfen
-                        </Button>
+                        <>
+                          <Button
+                            size="sm"
+                            variant="outline"
+                            disabled={reactivateMutation.isPending}
+                            onClick={() => reactivateMutation.mutate(dr.id)}
+                          >
+                            <RotateCcw className="size-4 mr-1" />
+                            Wieder aufleben
+                          </Button>
+                          <Button
+                            size="sm"
+                            variant="ghost"
+                            disabled={deleteMutation.isPending}
+                            onClick={() => deleteMutation.mutate(dr.id)}
+                          >
+                            <Trash2 className="size-4 mr-1" />
+                            Verwerfen
+                          </Button>
+                        </>
                       )}
                     </div>
                   </TableCell>