diff --git a/pkgs/development/python-modules/dftfit/default.nix b/pkgs/development/python-modules/dftfit/default.nix
index 0f0563e3baf5..73791bdaa9a6 100644
--- a/pkgs/development/python-modules/dftfit/default.nix
+++ b/pkgs/development/python-modules/dftfit/default.nix
@@ -12,11 +12,7 @@
 , lammps-cython
 , pymatgen-lammps
 , pytestrunner
-, pytest
-, pytestcov
-, pytest-benchmark
 , isPy3k
-, openssh
 }:
 
 buildPythonPackage rec {
@@ -25,18 +21,27 @@ buildPythonPackage rec {
   disabled = (!isPy3k);
 
   src = fetchPypi {
-     inherit pname version;
-     sha256 = "4dcbde48948835dcf2d49d6628c9df5747a8ec505d517e374b8d6c7fe95892df";
+    inherit pname version;
+    sha256 = "4dcbde48948835dcf2d49d6628c9df5747a8ec505d517e374b8d6c7fe95892df";
   };
 
   buildInputs = [ pytestrunner ];
-  checkInputs = [ pytest pytestcov pytest-benchmark openssh ];
-  propagatedBuildInputs = [ pymatgen marshmallow pyyaml pygmo
-                            pandas scipy numpy scikitlearn
-                            lammps-cython pymatgen-lammps ];
+  propagatedBuildInputs = [
+    pymatgen
+    marshmallow
+    pyyaml
+    pygmo
+    pandas
+    scipy
+    numpy
+    scikitlearn
+    lammps-cython
+    pymatgen-lammps
+  ];
 
   # tests require git lfs download. and is quite large so skip tests
   doCheck = false;
+  pythonImportsCheck = [ "dftfit" ];
 
   meta = {
     description = "Ab-Initio Molecular Dynamics Potential Development";