diff --git a/ports/libsimpleservo/capi/build.rs b/ports/libsimpleservo/capi/build.rs
index 84af6a6e407..37c9ff4bf2a 100644
--- a/ports/libsimpleservo/capi/build.rs
+++ b/ports/libsimpleservo/capi/build.rs
@@ -12,6 +12,7 @@ fn main() {
     cbindgen::Builder::new()
         .with_crate(crate_dir)
         .with_language(cbindgen::Language::C)
+        .exclude_item("OutputDebugStringA")
         .generate()
         .expect("Unable to generate bindings")
         .write_to_file(dest);