diff --git a/crates/typos-cli/src/default_types.rs b/crates/typos-cli/src/default_types.rs
index db71bf5..390e419 100644
--- a/crates/typos-cli/src/default_types.rs
+++ b/crates/typos-cli/src/default_types.rs
@@ -185,6 +185,7 @@ pub const DEFAULT_TYPES: &[(&str, &[&str])] = &[
     ("purs", &["*.purs"]),
     ("py", &[
         "*.py",
+        "*.pyi",
         // From a spell-check perspective, this is more like Python than toml
         "pyproject.toml",
     ]),