diff --git a/hw/xwayland/xwayland-glamor.c b/hw/xwayland/xwayland-glamor.c
index 61418e707..f17914344 100644
--- a/hw/xwayland/xwayland-glamor.c
+++ b/hw/xwayland/xwayland-glamor.c
@@ -72,14 +72,12 @@ xwl_glamor_init_wl_registry(struct xwl_screen *xwl_screen,
                             uint32_t version)
 {
     if (xwl_screen->gbm_backend.is_available &&
-        xwl_screen->gbm_backend.init_wl_registry &&
         xwl_screen->gbm_backend.init_wl_registry(xwl_screen,
                                                  registry,
                                                  id,
                                                  interface,
                                                  version)); /* no-op */
     else if (xwl_screen->eglstream_backend.is_available &&
-             xwl_screen->eglstream_backend.init_wl_registry &&
              xwl_screen->eglstream_backend.init_wl_registry(xwl_screen,
                                                             registry,
                                                             id,
@@ -91,11 +89,7 @@ Bool
 xwl_glamor_has_wl_interfaces(struct xwl_screen *xwl_screen,
                             struct xwl_egl_backend *xwl_egl_backend)
 {
-    if (xwl_egl_backend->has_wl_interfaces)
-        return xwl_egl_backend->has_wl_interfaces(xwl_screen);
-
-    /* If the backend has no requirement wrt WL interfaces, we're fine */
-    return TRUE;
+    return xwl_egl_backend->has_wl_interfaces(xwl_screen);
 }
 
 struct wl_buffer *
diff --git a/hw/xwayland/xwayland.h b/hw/xwayland/xwayland.h
index dc01c747c..d70ad54bf 100644
--- a/hw/xwayland/xwayland.h
+++ b/hw/xwayland/xwayland.h
@@ -64,16 +64,14 @@ struct xwl_egl_backend {
     Bool is_available;
 
     /* Called once for each interface in the global registry. Backends
-     * should use this to bind to any wayland interfaces they need. This
-     * callback is optional.
+     * should use this to bind to any wayland interfaces they need.
      */
     Bool (*init_wl_registry)(struct xwl_screen *xwl_screen,
                              struct wl_registry *wl_registry,
                              uint32_t id, const char *name,
                              uint32_t version);
 
-    /* Check that the required Wayland interfaces are available. This
-     * callback is optional.
+    /* Check that the required Wayland interfaces are available.
      */
     Bool (*has_wl_interfaces)(struct xwl_screen *xwl_screen);