diff --git a/crates/treehouse/src/tree.rs b/crates/treehouse/src/tree.rs
index 00a5bb7..78a0225 100644
--- a/crates/treehouse/src/tree.rs
+++ b/crates/treehouse/src/tree.rs
@@ -97,7 +97,7 @@ impl SemaRoots {
         let successfully_parsed = successfully_parsed;
 
         if successfully_parsed {
-            let attribute_warning_span = roots
+            let _attribute_warning_span = roots
                 .attributes
                 .as_ref()
                 .map(|attributes| attributes.percent.clone())
@@ -109,28 +109,6 @@ impl SemaRoots {
                     _ => panic!("parse_attributes called for a non-.tree file"),
                 }
             }
-
-            if attributes.id.is_empty() {
-                attributes.id = format!("treehouse-missingno-{}", treehouse.next_missingno());
-                diagnostics.push(Diagnostic {
-                    severity: Severity::Warning,
-                    code: Some("attr".into()),
-                    message: "page does not have an `id` attribute".into(),
-                    labels: vec![Label {
-                        style: LabelStyle::Primary,
-                        file_id,
-                        range: attribute_warning_span.clone(),
-                        message: String::new(),
-                    }],
-                    notes: vec![
-                        format!(
-                            "note: a generated id `{}` will be used, but this id is unstable and will not persist across generations",
-                            attributes.id
-                        ),
-                        format!("help: run `treehouse fix {}` to add missing ids to pages", treehouse.path(file_id)),
-                    ],
-                });
-            }
         }
 
         if let Some(thumbnail) = &attributes.thumbnail {
diff --git a/crates/treehouse/src/tree/attributes.rs b/crates/treehouse/src/tree/attributes.rs
index 6a5a654..3829d5f 100644
--- a/crates/treehouse/src/tree/attributes.rs
+++ b/crates/treehouse/src/tree/attributes.rs
@@ -7,10 +7,6 @@ use crate::{state::FileId, vfs::VPathBuf};
 /// Top-level `%%` root attributes.
 #[derive(Debug, Default, Clone, PartialEq, Eq, Deserialize, Serialize)]
 pub struct RootAttributes {
-    /// Permanent ID of this page.
-    #[serde(default)]
-    pub id: String,
-
     /// Template to use for generating the page.
     /// Defaults to `_tree.hbs`.
     #[serde(default)]
diff --git a/crates/treehouse/tests/it/vfs/mount_points.rs b/crates/treehouse/tests/it/vfs/mount_points.rs
index f08b956..c030784 100644
--- a/crates/treehouse/tests/it/vfs/mount_points.rs
+++ b/crates/treehouse/tests/it/vfs/mount_points.rs
@@ -1,6 +1,4 @@
-use treehouse::vfs::{
-    entries, query, BufferedFile, Content, Dir, MemDir, ToDynDir, VPath, VPathBuf,
-};
+use treehouse::vfs::{entries, query, BufferedFile, Content, MemDir, ToDynDir, VPath, VPathBuf};
 
 const HEWWO: &[u8] = b"hewwo :3";
 const FWOOFEE: &[u8] = b"fwoofee -w-";