diff --git a/rslib/src/import_export/package/apkg/import.rs b/rslib/src/import_export/package/apkg/import.rs
index 8e0711acf..5c381c44e 100644
--- a/rslib/src/import_export/package/apkg/import.rs
+++ b/rslib/src/import_export/package/apkg/import.rs
@@ -204,10 +204,12 @@ impl<'a> Context<'a> {
     }
 
     fn add_notetype(&mut self, notetype: &mut Notetype) -> Result<()> {
-        notetype.usn = self.usn;
-        // TODO: make undoable
+        notetype.prepare_for_update(None, true)?;
         self.target_col
-            .add_or_update_notetype_with_existing_id_inner(notetype, None, self.usn, true)
+            .ensure_notetype_name_unique(notetype, self.usn)?;
+        notetype.usn = self.usn;
+        self.target_col
+            .add_notetype_with_unique_id_undoable(notetype)
     }
 
     fn update_notetype(&mut self, notetype: &mut Notetype, original: Notetype) -> Result<()> {
diff --git a/rslib/src/notetype/undo.rs b/rslib/src/notetype/undo.rs
index 74f6d34a6..5780ed9b2 100644
--- a/rslib/src/notetype/undo.rs
+++ b/rslib/src/notetype/undo.rs
@@ -42,6 +42,17 @@ impl Collection {
         Ok(())
     }
 
+    /// Caller must ensure [NotetypeId] is unique.
+    pub(crate) fn add_notetype_with_unique_id_undoable(
+        &mut self,
+        notetype: &Notetype,
+    ) -> Result<()> {
+        self.storage
+            .add_or_update_notetype_with_existing_id(notetype)?;
+        self.save_undo(UndoableNotetypeChange::Added(Box::new(notetype.clone())));
+        Ok(())
+    }
+
     pub(super) fn update_notetype_undoable(
         &mut self,
         notetype: &Notetype,