diff --git a/pkgs/tools/system/thinkfan/default.nix b/pkgs/tools/system/thinkfan/default.nix
index 60d47dab20e6..e0a061a45b88 100644
--- a/pkgs/tools/system/thinkfan/default.nix
+++ b/pkgs/tools/system/thinkfan/default.nix
@@ -31,6 +31,9 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
+    description = "A minimalist fan control program. Originally designed
+specifically for IBM/Lenovo Thinkpads, it now supports any kind of system via
+the sysfs hwmon interface (/sys/class/hwmon).";
     license = licenses.gpl3;
     homepage = "https://github.com/vmatare/thinkfan";
     maintainers = with maintainers; [ domenkozar ];