diff --git a/src/textual/widgets/_sparkline.py b/src/textual/widgets/_sparkline.py
index d691f5f435..f638b28314 100644
--- a/src/textual/widgets/_sparkline.py
+++ b/src/textual/widgets/_sparkline.py
@@ -32,7 +32,7 @@ class Sparkline(Widget):
     | Class | Description |
     | :- | :- |
     | `sparkline--max-color` | The color used for the larger values in the data. |
-    | `sparkline--min-color` | The colour used for the smaller values in the data. |
+    | `sparkline--min-color` | The color used for the smaller values in the data. |
     """
 
     DEFAULT_CSS = """