diff --git a/docs/widgets/sparkline.md b/docs/widgets/sparkline.md
index 454e674c42..61f13da75d 100644
--- a/docs/widgets/sparkline.md
+++ b/docs/widgets/sparkline.md
@@ -110,7 +110,12 @@ This widget has no bindings.
 
 ## Component Classes
 
-This widget has no component classes.
+The sparkline widget provides the following component classes:
+
+::: textual.widgets.Sparkline.COMPONENT_CLASSES
+    options:
+      show_root_heading: false
+      show_root_toc_entry: false
 
 ---