diff --git a/wayland.c b/wayland.c
index c09b3cd..1d34b56 100644
--- a/wayland.c
+++ b/wayland.c
@@ -14,6 +14,7 @@ struct wl_surface *surface = NULL;
 struct xdg_wm_base *wm_base = NULL;
 struct xdg_surface *xdg_surface = NULL;
 struct xdg_toplevel *xdg_toplevel = NULL;
+struct wl_egl_window *window = NULL;
 EGLBoolean errcode = 0;
 
 char *egl_s(int code)
@@ -66,6 +67,17 @@ registry_listener = {
 	.global_remove = registry_handle_global_remove,
 };
 
+/* Window size change callbacks */
+static void xdg_toplevel_configure([[maybe_unused]] void *data, [[maybe_unused]] struct xdg_toplevel *t, int32_t width, int32_t height, [[maybe_unused]] struct wl_array *states)
+{
+    if (!width || !height)
+      return; // compositor is deferring to us
+
+    fprintf(stdout, "Trying to resize window to %d W %d H\n", width, height);
+    wl_egl_window_resize(window, width, height, 0, 0);
+    glViewport(0, 0, width, height);
+}
+
 int main()
 {
     fprintf(stdout, "Starting platform layer...\n");
@@ -97,8 +109,14 @@ int main()
     xdg_toplevel = xdg_surface_get_toplevel(xdg_surface);
     xdg_toplevel_set_title(xdg_toplevel, "Hi");
 
+    const struct xdg_toplevel_listener xdg_toplevel_listener = {
+      .configure = xdg_toplevel_configure
+    };
+    if (xdg_toplevel_add_listener(xdg_toplevel, &xdg_toplevel_listener, NULL))
+        fprintf(stderr, "Could not set XDG toplevel listener\n");
+
     /* WL EGL initialization */
-    struct wl_egl_window *window = wl_egl_window_create(surface, 480, 460);
+    window = wl_egl_window_create(surface, 480, 460);
 
     EGLDisplay egl_display = eglGetDisplay((EGLNativeDisplayType) display);
     if (egl_display == EGL_NO_DISPLAY)