diff --git a/crates/openlogi-hid/Cargo.toml b/crates/openlogi-hid/Cargo.toml
index 59b2b70b..d237ca1d 100644
--- a/crates/openlogi-hid/Cargo.toml
+++ b/crates/openlogi-hid/Cargo.toml
@@ -34,6 +34,9 @@ windows-sys = { workspace = true, features = [
     # exposed when Win32_Security is also enabled.
     "Win32_Security",
     "Win32_Storage_FileSystem",
+    # WriteFile's signature references OVERLAPPED, so it is only exposed when
+    # Win32_System_IO is also enabled.
+    "Win32_System_IO",
 ] }
 
 [lints]