diff --git a/crates/librqbit/src/create_torrent_file.rs b/crates/librqbit/src/create_torrent_file.rs
index caecaef..18ea5dc 100644
--- a/crates/librqbit/src/create_torrent_file.rs
+++ b/crates/librqbit/src/create_torrent_file.rs
@@ -124,7 +124,13 @@ async fn create_torrent_raw<'a>(
                     .components()
                     .map(|c| osstr_to_bytes(c.as_os_str()).into())
                     .collect();
-                output_files.push(TorrentMetaV1File { length, path });
+                output_files.push(TorrentMetaV1File {
+                    length,
+                    path,
+                    attr: None,
+                    sha1: None,
+                    symlink_path: None,
+                });
                 continue 'outer;
             }
 
@@ -154,6 +160,9 @@ async fn create_torrent_raw<'a>(
         } else {
             Some(output_files)
         },
+        attr: None,
+        sha1: None,
+        symlink_path: None,
     })
 }
 
diff --git a/crates/librqbit/src/upnp_server_adapter.rs b/crates/librqbit/src/upnp_server_adapter.rs
index 7a2e278..d91b0e7 100644
--- a/crates/librqbit/src/upnp_server_adapter.rs
+++ b/crates/librqbit/src/upnp_server_adapter.rs
@@ -402,9 +402,15 @@ mod tests {
                         .map(|f| TorrentMetaV1File {
                             length: 1,
                             path: f.split("/").map(|f| f.as_bytes().into()).collect(),
+                            attr: None,
+                            sha1: None,
+                            symlink_path: None,
                         })
                         .collect(),
                 ),
+                attr: None,
+                sha1: None,
+                symlink_path: None,
             },
             comment: None,
             created_by: None,
diff --git a/crates/librqbit_core/src/torrent_metainfo.rs b/crates/librqbit_core/src/torrent_metainfo.rs
index ee61bd5..6dfd5cc 100644
--- a/crates/librqbit_core/src/torrent_metainfo.rs
+++ b/crates/librqbit_core/src/torrent_metainfo.rs
@@ -99,6 +99,12 @@ pub struct TorrentMetaV1Info<BufType> {
     // Single-file mode
     #[serde(skip_serializing_if = "Option::is_none")]
     pub length: Option<u64>,
+    #[serde(default = "none")]
+    pub attr: Option<BufType>,
+    #[serde(default = "none")]
+    pub sha1: Option<BufType>,
+    #[serde(default = "none", rename = "symlink path")]
+    pub symlink_path: Option<Vec<BufType>>,
 
     #[serde(skip_serializing_if = "Option::is_none")]
     pub md5sum: Option<BufType>,
@@ -253,10 +259,21 @@ impl<BufType: AsRef<[u8]>> TorrentMetaV1Info<BufType> {
     }
 }
 
+const fn none<T>() -> Option<T> {
+    None
+}
+
 #[derive(Deserialize, Serialize, Debug, Clone, PartialEq, Eq)]
 pub struct TorrentMetaV1File<BufType> {
     pub length: u64,
     pub path: Vec<BufType>,
+
+    #[serde(default = "none")]
+    pub attr: Option<BufType>,
+    #[serde(default = "none")]
+    pub sha1: Option<BufType>,
+    #[serde(default = "none", rename = "symlink path")]
+    pub symlink_path: Option<Vec<BufType>>,
 }
 
 impl<BufType> TorrentMetaV1File<BufType>
@@ -282,6 +299,9 @@ where
         TorrentMetaV1File {
             length: self.length,
             path: self.path.clone_to_owned(within_buffer),
+            attr: self.attr.clone_to_owned(within_buffer),
+            sha1: self.sha1.clone_to_owned(within_buffer),
+            symlink_path: self.symlink_path.clone_to_owned(within_buffer),
         }
     }
 }
@@ -300,6 +320,9 @@ where
             length: self.length,
             md5sum: self.md5sum.clone_to_owned(within_buffer),
             files: self.files.clone_to_owned(within_buffer),
+            attr: self.attr.clone_to_owned(within_buffer),
+            sha1: self.sha1.clone_to_owned(within_buffer),
+            symlink_path: self.symlink_path.clone_to_owned(within_buffer),
         }
     }
 }