diff --git a/.changes/os-OsType.md b/.changes/os-OsType.md
new file mode 100644
index 00000000..7fab4948
--- /dev/null
+++ b/.changes/os-OsType.md
@@ -0,0 +1,5 @@
+---
+"os-js": "patch"
+---
+
+Fix `macss -> macos` typo in `OsType` type.