diff --git a/adb/Android.bp b/adb/Android.bp
index 01e00dd..eec1335 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -59,6 +59,9 @@
                 // MinGW hides some things behind _POSIX_SOURCE.
                 "-D_POSIX_SOURCE",
 
+                // libusb uses __stdcall on a variadic function, which gets ignored.
+                "-Wno-ignored-attributes",
+
                 // Not supported yet.
                 "-Wno-thread-safety",
             ],