diff --git a/pkgs/lcsync/default.nix b/pkgs/lcsync/default.nix
index 91c67cf0..630b2419 100644
--- a/pkgs/lcsync/default.nix
+++ b/pkgs/lcsync/default.nix
@@ -3,6 +3,7 @@
 , fetchFromGitea
 , lcrq
 , librecast
+, lib
 , ...
 }:
 stdenv.mkDerivation rec {
@@ -23,6 +24,7 @@ stdenv.mkDerivation rec {
   preCheckPhase = ''
     # rm 
   '';
+  postCheck = "exit 1";
 
   meta = with lib; {
     homepage = "https://librecast.net/lcsync.html";
diff --git a/pkgs/librecast/default.nix b/pkgs/librecast/default.nix
index de7775b8..5cf4d338 100644
--- a/pkgs/librecast/default.nix
+++ b/pkgs/librecast/default.nix
@@ -2,6 +2,7 @@
 , pkgs
 , fetchFromGitea
 , lcrq
+, lib
 , ...
 }:
 stdenv.mkDerivation rec {