1 files changed, 1 insertions, 0 deletions

diff --git a/custom/notify-user.nix b/custom/notify-user.nix
index a437bf9b..b3c5f766 100644
--- a/custom/notify-user.nix
+++ b/custom/notify-user.nix
@@ -10,6 +10,7 @@ stdenv.mkDerivation {
     import System.FilePath.Glob (glob)
     import System.Directory (setCurrentDirectory)
     import System.Environment (setEnv, getArgs)
+    import System.Process (proc)
 
     import Data.List (isPrefixOf)