diff --git a/packaging/windows/drivers/vendor/wdk-sys/build.rs b/packaging/windows/drivers/vendor/wdk-sys/build.rs
index b4defa1..b4b6964 100644
--- a/packaging/windows/drivers/vendor/wdk-sys/build.rs
+++ b/packaging/windows/drivers/vendor/wdk-sys/build.rs
@@ -375,8 +375,14 @@ fn generate_iddcx(out_path: &Path, config: &Config) -> Result<(), ConfigError> {
             // missing), so this stays type-identical for the WDF surface.
             .allowlist_type("DXGI_.*")
             .allowlist_type("IDXGI.*")
-            .allowlist_type("OPM_.*")
-            .allowlist_type("UINT")
+            // OPM types are `typedef struct _OPM_X {..} OPM_X` — allowlist BOTH the tag and the typedef
+            // (allowlist_recursively(false) won't pull the tag in from the typedef). Plus D3DCOLORVALUE,
+            // referenced by an OPM struct.
+            .allowlist_type("_?OPM_.*")
+            .allowlist_type("_?D3DCOLORVALUE")
+            // `UINT` is `unsigned int`; wdk-sys never references it so it's absent from crate::types and
+            // allowlist_type won't emit a bare primitive alias. Shim it (unambiguous on Windows).
+            .raw_line("pub type UINT = ::core::ffi::c_uint;")
     };
     trace!(bindgen_builder = ?bindgen_builder);