diff --git a/src/nvr_at.c b/src/nvr_at.c
index c25c482d8..ce720add9 100644
--- a/src/nvr_at.c
+++ b/src/nvr_at.c
@@ -1226,7 +1226,8 @@ nvr_at_init(const device_t *info)
             io_sethandler(0x0070, 2,
                           nvr_read, NULL, NULL, nvr_write, NULL, NULL, nvr);
         }
-        if (((info->local & 0x1f) == 0x11) || ((info->local & 0x1f) == 0x17)) {
+        if (((info->local & 0x1f) == 0x11) || ((info->local & 0x1f) == 0x17) ||
+            ((info->local & 0x1f) == 0x18)) {
             io_sethandler(0x0072, 2,
                           nvr_read, NULL, NULL, nvr_write, NULL, NULL, nvr);
         }