diff --git a/pkgs/tools/package-management/lix/common-lix.nix b/pkgs/tools/package-management/lix/common-lix.nix
index 9e400afd6b06..d5277055efd2 100644
--- a/pkgs/tools/package-management/lix/common-lix.nix
+++ b/pkgs/tools/package-management/lix/common-lix.nix
@@ -126,6 +126,19 @@ let
       ''
         substitute $inputPath $out --replace-fail @deps@ "$(cat ${deps})"
       '';
+
+  # https://github.com/NixOS/nixpkgs/pull/525953 backported a performance patch
+  # that /somehow/ breaks Lix unit tests.
+  # FIXME revert when the patch is gone in curl drv
+  curl-fixed = curl.overrideAttrs (
+    {
+      patches ? [ ],
+      ...
+    }:
+    {
+      patches = lib.filter (patch: !lib.strings.hasSuffix "fix-wakeup-consumption.patch" patch) patches;
+    }
+  );
 in
 # gcc miscompiles coroutines at least until 13.2, possibly longer
 # do not remove this check unless you are sure you (or your users) will not report bugs to Lix upstream about GCC miscompilations.
@@ -243,14 +256,14 @@ stdenv.mkDerivation (finalAttrs: {
   ++ lib.optionals stdenv.hostPlatform.isLinux [ util-linuxMinimal ]
   ++ lib.optionals (lib.versionAtLeast version "2.94") [ zstd ]
   ++ lib.optionals (withPlugins && finalAttrs.doInstallCheck) [
-    curl
+    curl-fixed
   ];
 
   buildInputs = [
     boost
     brotli
     bzip2
-    curl
+    curl-fixed
     capnproto
     editline
     openssl