diff --git a/kitty/fast_data_types.pyi b/kitty/fast_data_types.pyi
index 1d70c5255..371ee122f 100644
--- a/kitty/fast_data_types.pyi
+++ b/kitty/fast_data_types.pyi
@@ -423,7 +423,7 @@ class FontConfigPattern(TypedDict):
     scalable: bool
     outline: bool
     color: bool
-    matrix: tuple[float, float, float, float]
+    matrix: NotRequired[tuple[float, float, float, float]]
     variable: bool
     named_instance: bool