diff --git a/filecloudapi/datastructures.py b/filecloudapi/datastructures.py
index 0f11e31..5027624 100644
--- a/filecloudapi/datastructures.py
+++ b/filecloudapi/datastructures.py
@@ -199,6 +199,7 @@ class SyncDeltaItem:
     candownload: bool
     canupload: bool
     canrename: bool
+    etag: str
 
 
 @dataclass
diff --git a/filecloudapi/fcserver.py b/filecloudapi/fcserver.py
index a2a5403..ef53327 100644
--- a/filecloudapi/fcserver.py
+++ b/filecloudapi/fcserver.py
@@ -1461,6 +1461,7 @@ def getsyncdelta(
                 "path": sync_folder.path,
                 "status": f"server,{sync_folder.update_version};",
                 "permissions": "1" if with_permissions else "0",
+                "includeextrafields": "1",
             },
         )
 
@@ -1482,6 +1483,7 @@ def getsyncdelta(
                 int(entry.findtext("./candownload", "0")) == 1,
                 int(entry.findtext("./canupload", "0")) == 1,
                 int(entry.findtext("./canrename", "0")) == 1,
+                entry.findtext("./etag", ""),
             )
             sync_delta.append(ne)
 
diff --git a/pyproject.toml b/pyproject.toml
index 8e9735b..4636385 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 
 name = "filecloudapi-python"
-version = "0.5.0"
+version = "0.5.1"
 description = "A Python library to connect to a Filecloud server"
 
 packages = [{ include = "filecloudapi" }]