diff --git a/docs/egl.rst b/docs/egl.rst
index ab786cf66f7..2959dede86f 100644
--- a/docs/egl.rst
+++ b/docs/egl.rst
@@ -123,6 +123,11 @@ EGL Drivers
 
    This driver can share DRI drivers with ``libGL``.
 
+``haiku``
+   This driver supports only the `Haiku <https://haiku-os.org>`__
+   platform. It is also much less feature-complete than ``egl_dri2``,
+   supporting only part of EGL 1.4 and none of the extensions beyond it.
+
 Lifetime of Display Resources
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~