diff --git a/pkgs/default.nix b/pkgs/default.nix
index a70cdbe6..65eb39f9 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -50,5 +50,6 @@ let
       vpaint = libsForQt5.callPackage ./vpaint.nix { };
       wayback = libsForQt5.callPackage ./wayback.nix { };
       wzmach = libsForQt5.callPackage ./wzmach { };
+      watc = callPackage ./watc { };
     };
 in lib.fix (lib.extends overrides packages)
diff --git a/pkgs/watc/default.nix b/pkgs/watc/default.nix
index 25686b10..3752e3a3 100644
--- a/pkgs/watc/default.nix
+++ b/pkgs/watc/default.nix
@@ -7,10 +7,10 @@ buildGoModule rec {
   src = fetchhg {
     url = "https://humungus.tedunangst.com/r/watc";
     rev = "b0dc3d9fcecd";
-    sha256 = "";
+    sha256 = "sha256-0JK9bu53xZvlDILpivY7PGWu/39OUj5mGE7oYbKx8uw=";
   };
 
-  vendorSha256 = "";
+  vendorSha256 = "sha256-O8RekYsjKF9OnBT3kXs0p5sJ67hc+VbT6qS3ra+AUkM=";
 
   meta = with lib; {
     homepage = "https://humungus.tedunangst.com/r/watc";