diff --git a/api/fields/hit_testing_fields.py b/api/fields/hit_testing_fields.py
index b9f7e78c17..d9758474f7 100644
--- a/api/fields/hit_testing_fields.py
+++ b/api/fields/hit_testing_fields.py
@@ -14,6 +14,7 @@ segment_fields = {
     "position": fields.Integer,
     "document_id": fields.String,
     "content": fields.String,
+    "sign_content": fields.String,
     "answer": fields.String,
     "word_count": fields.Integer,
     "tokens": fields.Integer,
diff --git a/api/fields/segment_fields.py b/api/fields/segment_fields.py
index 52f89859c9..aaac31cf40 100644
--- a/api/fields/segment_fields.py
+++ b/api/fields/segment_fields.py
@@ -18,6 +18,7 @@ segment_fields = {
     "position": fields.Integer,
     "document_id": fields.String,
     "content": fields.String,
+    "sign_content": fields.String,
     "answer": fields.String,
     "word_count": fields.Integer,
     "tokens": fields.Integer,
diff --git a/api/models/dataset.py b/api/models/dataset.py
index 567f7db432..7c755fd271 100644
--- a/api/models/dataset.py
+++ b/api/models/dataset.py
@@ -582,6 +582,10 @@ class DocumentSegment(db.Model):  # type: ignore[name-defined]
                 return []
         else:
             return []
+    
+    @property
+    def sign_content(self):
+        return self.get_sign_content()
 
     def get_sign_content(self):
         signed_urls = []