diff --git a/bootstrap/coriolis2.spec.in b/bootstrap/coriolis2.spec.in
index aa5c30ba..e541bb8b 100644
--- a/bootstrap/coriolis2.spec.in
+++ b/bootstrap/coriolis2.spec.in
@@ -119,7 +119,7 @@ Development files for the Coriolis 2 package.
 %dir %{coriolisTop}/%{_lib}
 %dir %{coriolisTop}/%{python_sitedir}
 %dir %{coriolisTop}/%{python_sitedir}/crlcore
-%dir %{coriolisTop}/%{python_sitedir}/crlcore/helpers
+%dir %{coriolisTop}/%{python_sitedir}/helpers
 %dir %{coriolisTop}/%{python_sitedir}/cumulus
 %dir %{coriolisTop}/%{python_sitedir}/stratus
 %{coriolisTop}/bin/*
@@ -130,7 +130,7 @@ Development files for the Coriolis 2 package.
 %{coriolisTop}/%{python_sitedir}/cumulus/plugins/*/*.py*
 %{coriolisTop}/%{python_sitedir}/stratus/*.py*
 %{coriolisTop}/%{python_sitedir}/crlcore/*.py*
-%{coriolisTop}/%{python_sitedir}/crlcore/helpers/*.py*
+%{coriolisTop}/%{python_sitedir}/helpers/*.py*
 %{coriolisTop}/%{python_sitedir}/kite/*.py*
 %{coriolisTop}/%{python_sitedir}/unicorn/*.py*
 %{_sysconfdir}/coriolis2/*.py
diff --git a/crlcore/python/CMakeLists.txt b/crlcore/python/CMakeLists.txt
index 5a4697a2..ffedd828 100644
--- a/crlcore/python/CMakeLists.txt
+++ b/crlcore/python/CMakeLists.txt
@@ -1,7 +1,7 @@
 
- install( FILES   helpers/__init__.py               DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
- install( FILES   helpers/io.py                     DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
- install( FILES   helpers/utils.py                  DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
- install( FILES   helpers/overlay.py                DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
- install( FILES   helpers/analogtechno.py           DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
- install( FILES   helpers/technology.py             DESTINATION ${Python_CORIOLISLIB}/crlcore/helpers ) 
+ install( FILES   helpers/__init__.py               DESTINATION ${Python_CORIOLISLIB}/helpers ) 
+ install( FILES   helpers/io.py                     DESTINATION ${Python_CORIOLISLIB}/helpers ) 
+ install( FILES   helpers/utils.py                  DESTINATION ${Python_CORIOLISLIB}/helpers ) 
+ install( FILES   helpers/overlay.py                DESTINATION ${Python_CORIOLISLIB}/helpers ) 
+ install( FILES   helpers/analogtechno.py           DESTINATION ${Python_CORIOLISLIB}/helpers ) 
+ install( FILES   helpers/technology.py             DESTINATION ${Python_CORIOLISLIB}/helpers ) 
diff --git a/nix/crlcore.nix b/nix/crlcore.nix
index 433ec9c4..3c1b6901 100644
--- a/nix/crlcore.nix
+++ b/nix/crlcore.nix
@@ -8,7 +8,6 @@ let pkg =
     propagatedBuildInputs = [ libxml2 qt4 coriolis-lefdef coriolis-hurricane python3Packages.pyqt4 ];
     nativeBuildInputs = [ bison flex doxygen python3Packages.pyqt4 ];
     postInstall = ''
-      ln -s crlcore/helpers $out/${python3Packages.python.sitePackages}/helpers
       ln -s -t $out/${python3Packages.python.sitePackages} $out/etc/coriolis2/*
 
       # for import check