diff --git a/wayland-egl/wayland-egl-ext.h b/wayland-egl/wayland-egl-ext.h
index 6688e45..a258bf4 100644
--- a/wayland-egl/wayland-egl-ext.h
+++ b/wayland-egl/wayland-egl-ext.h
@@ -23,6 +23,30 @@
 #ifndef WAYLAND_EGL_EXT_H
 #define WAYLAND_EGL_EXT_H
 
+#ifndef EGL_WL_bind_wayland_display
+#define EGL_WL_bind_wayland_display 1
+#define PFNEGLBINDWAYLANDDISPLAYWL PFNEGLBINDWAYLANDDISPLAYWLPROC
+#define PFNEGLUNBINDWAYLANDDISPLAYWL PFNEGLUNBINDWAYLANDDISPLAYWLPROC
+#define PFNEGLQUERYWAYLANDBUFFERWL PFNEGLQUERYWAYLANDBUFFERWLPROC
+struct wl_display;
+struct wl_resource;
+#define EGL_WAYLAND_BUFFER_WL             0x31D5
+#define EGL_WAYLAND_PLANE_WL              0x31D6
+#define EGL_TEXTURE_Y_U_V_WL              0x31D7
+#define EGL_TEXTURE_Y_UV_WL               0x31D8
+#define EGL_TEXTURE_Y_XUXV_WL             0x31D9
+#define EGL_TEXTURE_EXTERNAL_WL           0x31DA
+#define EGL_WAYLAND_Y_INVERTED_WL         0x31DB
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLBINDWAYLANDDISPLAYWLPROC) (EGLDisplay dpy, struct wl_display *display);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLUNBINDWAYLANDDISPLAYWLPROC) (EGLDisplay dpy, struct wl_display *display);
+typedef EGLBoolean (EGLAPIENTRYP PFNEGLQUERYWAYLANDBUFFERWLPROC) (EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+#ifdef EGL_EGLEXT_PROTOTYPES
+EGLAPI EGLBoolean EGLAPIENTRY eglBindWaylandDisplayWL (EGLDisplay dpy, struct wl_display *display);
+EGLAPI EGLBoolean EGLAPIENTRY eglUnbindWaylandDisplayWL (EGLDisplay dpy, struct wl_display *display);
+EGLAPI EGLBoolean EGLAPIENTRY eglQueryWaylandBufferWL (EGLDisplay dpy, struct wl_resource *buffer, EGLint attribute, EGLint *value);
+#endif
+#endif /* EGL_WL_bind_wayland_display */
+
 #ifndef EGL_WL_wayland_eglstream
 #define EGL_WL_wayland_eglstream 1
 #define EGL_WAYLAND_EGLSTREAM_WL              0x334B