diff --git a/BUILD.md b/BUILD.md
index 1e7b7336..158a41f9 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -246,6 +246,7 @@ Example usage: `cmake -S . -B build -DCMAKE_BUILD_TYPE=release -DENABLE_SDL=ON -
 | ENABLE_VCPKG       |   | Use VCPKG package manager to obtain dependencies                            | ON      |                    |
 | ENABLE_VULKAN      |   | Enable the Vulkan graphics backend                                          | ON      |                    |
 | ENABLE_WXWIDGETS   |   | Enable wxWidgets UI                                                         | ON      | Currently required |
+| ENABLE_LIBUSB      |   | Enable libusb                                                               | ON      |                    |
 
 ### Windows
 | Flag               | Description                       | Default | Note               |