diff --git a/progs/xdemos/glxgears.c b/progs/xdemos/glxgears.c
index 92c75ca..4ed07c0 100644
--- a/progs/xdemos/glxgears.c
+++ b/progs/xdemos/glxgears.c
@@ -521,6 +521,7 @@ make_window( Display *dpy, const char *name,
          printf("Error: couldn't get an RGB, Double-buffered visual\n");
       exit(1);
    }
+printf("glxgears: Using visual 0x%lx\n", (unsigned long)visinfo->visualid);
 
    /* window attributes */
    attr.background_pixel = 0;