diff --git a/hosts/12kingdoms-shoukei/hardware-configuration.nix b/hosts/12kingdoms-shoukei/hardware-configuration.nix
index 3a7a17a9..dae1fbbb 100644
--- a/hosts/12kingdoms-shoukei/hardware-configuration.nix
+++ b/hosts/12kingdoms-shoukei/hardware-configuration.nix
@@ -37,6 +37,7 @@
     "ntfs"
     "fat"
     "vfat"
+    "exfat"
   ];
 
   # clear /tmp on boot to get a stateless /tmp directory.
diff --git a/hosts/idols-ai/hardware-configuration.nix b/hosts/idols-ai/hardware-configuration.nix
index 96bc1590..6166b40a 100644
--- a/hosts/idols-ai/hardware-configuration.nix
+++ b/hosts/idols-ai/hardware-configuration.nix
@@ -40,6 +40,7 @@
     "ntfs"
     "fat"
     "vfat"
+    "exfat"
   ];
 
   boot.initrd = {