diff --git a/pkgs/applications/networking/protonmail-bridge/default.nix b/pkgs/applications/networking/protonmail-bridge/default.nix
index 2c13cc23b014..a4a127db73bf 100644
--- a/pkgs/applications/networking/protonmail-bridge/default.nix
+++ b/pkgs/applications/networking/protonmail-bridge/default.nix
@@ -6,7 +6,9 @@ let
 
   description = ''
     An application that runs on your computer in the background and seamlessly encrypts
-    and decrypts your mail as it enters and leaves your computer
+    and decrypts your mail as it enters and leaves your computer.
+
+    To work, gnome-keyring service must be enabled.
   '';
 
   desktopItem = makeDesktopItem {