diff --git a/overlay.nix b/overlay.nix
index 48d4b10d65f97baca296772f5c0fe94b62c1a42f..64206445fa0d3bf82a5d359880aec36b9658379f 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -55,6 +55,8 @@ final: prev: with pkgs.haskell.lib; {
 
   conduit = dontCheck prev.conduit;
 
+  conduit-extra = dontCheck prev.conduit-extra;
+
   constraints = doJailbreak prev.constraints;
 
   cryptohash-sha1 = doJailbreak prev.cryptohash-sha1;