diff --git a/nixos/modules/hardware/hackrf.nix b/nixos/modules/hardware/hackrf.nix
index 7f03b765bbda..467fd71ff1b0 100644
--- a/nixos/modules/hardware/hackrf.nix
+++ b/nixos/modules/hardware/hackrf.nix
@@ -12,6 +12,7 @@ in
       description = ''
         Enables hackrf udev rules and ensures 'plugdev' group exists.
         This is a prerequisite to using HackRF devices without being root, since HackRF USB descriptors will be owned by plugdev through udev.
+        Ensure your user is a member of the 'plugdev' group after enabling.
       '';
     };
   };