diff --git a/dist/info/np2kai_libretro.info b/dist/info/np2kai_libretro.info
index e6d48404..dcfc8afc 100644
--- a/dist/info/np2kai_libretro.info
+++ b/dist/info/np2kai_libretro.info
@@ -1,6 +1,6 @@
 display_name = "NEC PC-98 (Neko Project II Kai)"
 authors = "Neko Project II Team, Tomohiro Yoshidomi"
-supported_extensions = "d98|zip|98d|fdi|fdd|2hd|tfd|d88|88d|hdm|xdf|dup|cmd|hdi|thd|nhd|hdd"
+supported_extensions = "d98|zip|98d|fdi|fdd|2hd|tfd|d88|88d|hdm|xdf|dup|cmd|hdi|thd|nhd|hdd|hdn"
 corename = "Neko Project II"
 manufacturer = "NEC"
 categories = "Emulator"