diff --git a/pkgs/development/python-modules/pyscf/default.nix b/pkgs/development/python-modules/pyscf/default.nix
index cf6f91e74f7..04283b98b76 100644
--- a/pkgs/development/python-modules/pyscf/default.nix
+++ b/pkgs/development/python-modules/pyscf/default.nix
@@ -66,6 +66,7 @@ buildPythonPackage rec {
     nosetests pyscf/ -v \
       --exclude-dir=examples --exclude-dir=pyscf/pbc/grad \
       --exclude-dir=pyscf/x2c \
+      --exclude-dir=pyscf/adc \
       --exclude-dir=pyscf/pbc/tdscf \
       -e test_bz \
       -e h2o_vdz \