diff --git a/source/python.js b/source/python.js
index 0db6412123..a0c59d3e9a 100644
--- a/source/python.js
+++ b/source/python.js
@@ -6712,6 +6712,8 @@ python.Execution = class {
         this.registerType('fastai.callback.progress.ProgressCallback', class {});
         this.registerType('fastai.callback.progress.ShowGraphCallback', class {});
         this.registerType('fastai.callback.tracker.EarlyStoppingCallback', class {});
+        this.registerType('fastai.callback.tracker.TrackerCallback', class {});
+        this.registerType('fastai.callback.tracker.SaveModelCallback', class extends fastai.callback.tracker.TrackerCallback {});
         this.registerType('fastai.data.core.DataLoaders', class extends fastcore.basics.GetAttr {});
         this.registerType('fastai.data.core.Datasets', class {});
         this.registerType('fastai.data.load.DataLoader', class extends fastcore.basics.GetAttr {});