diff --git a/nifty5/__init__.py b/nifty5/__init__.py
index 88161cd34c78f632873fb33f65d261b2a4466492..0617f1a3e7332ee71ecb4b47fa4e174cd042aa61 100644
--- a/nifty5/__init__.py
+++ b/nifty5/__init__.py
@@ -94,8 +94,8 @@ from .logger import logger
 
 from .linearization import Linearization
 
-from . import parallelization_scheme
-_scheme = parallelization_scheme.scheme()
+from . import internal_config
+_scheme = internal_config.parallelization_scheme()
 if _scheme == "Samples":
     from .minimization.metric_gaussian_kl_mpi import MetricGaussianKL_MPI
 
diff --git a/nifty5/dobj.py b/nifty5/dobj.py
index c4b5e08e10eacd886b68b3c1618b665241976e52..9f3d3dc7ea8b019fe9f3254b2d323dbd2d98a526 100644
--- a/nifty5/dobj.py
+++ b/nifty5/dobj.py
@@ -15,10 +15,10 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-from . import parallelization_scheme
+from . import internal_config
 
 
-_scheme = parallelization_scheme.scheme()
+_scheme = internal_config.parallelization_scheme()
 
 if _scheme in ("Samples", "None"):
     from .data_objects.numpy_do import *
diff --git a/nifty5/parallelization_scheme.py b/nifty5/internal_config.py
similarity index 79%
rename from nifty5/parallelization_scheme.py
rename to nifty5/internal_config.py
index c2a4f5896ffb36ee7b4b7c361baf0aba0bbdee3e..c6c157aa0deb27bc40a2825aa99b04b30c893509 100644
--- a/nifty5/parallelization_scheme.py
+++ b/nifty5/internal_config.py
@@ -15,7 +15,11 @@
 #
 # NIFTy is being developed at the Max-Planck-Institut fuer Astrophysik.
 
-def scheme():
-    # return "Standard"
-    return "Samples"
+
+# Internal configuration switches, typically for experimental features.
+# Leave unchanged unless you know what you are doing!
+
+def parallelization_scheme():
+    return "Standard"
+    # return "Samples"
     # return "None"