diff --git a/rg/__init__.py b/rg/__init__.py
index 49442520ee00cd3ece56f99aee72eb07af028eaa..866769a43a140efcdeddd8dd2d739c1ff5cfbcc4 100644
--- a/rg/__init__.py
+++ b/rg/__init__.py
@@ -20,8 +20,7 @@
 ## along with this program. If not, see <http://www.gnu.org/licenses/>.
 
 from __future__ import division
-from nifty_rg import RGSpace,\
-                     utilities
+from rg_space import RGSpace
 from nifty_power_conversion_rg import power_backward_conversion_rg,\
-                                    power_forward_conversion_rg
+                                      power_forward_conversion_rg
 
diff --git a/rg/nifty_rg.py b/rg/rg_space.py
similarity index 100%
rename from rg/nifty_rg.py
rename to rg/rg_space.py
diff --git a/test/test_nifty_field.py b/test/test_nifty_field.py
index d366cbb1a2f5239be8c97b5b651ca1d954eb12ed..17ed246d71940eb8f496032bab59a5aa45c5a3ae 100644
--- a/test/test_nifty_field.py
+++ b/test/test_nifty_field.py
@@ -21,7 +21,7 @@ from nifty.lm import *
 from nifty.field import Field
 
 from nifty.nifty_core import POINT_DISTRIBUTION_STRATEGIES
-from nifty.rg.nifty_rg import RG_DISTRIBUTION_STRATEGIES, \
+from nifty.rg.rg_space import RG_DISTRIBUTION_STRATEGIES, \
     gc as RG_GC
 from nifty.lm.nifty_lm import LM_DISTRIBUTION_STRATEGIES, \
     GL_DISTRIBUTION_STRATEGIES, \
diff --git a/test/test_nifty_operators.py b/test/test_nifty_operators.py
index 8856d1812cffc84e36289c0f7652cce70fdf2e7d..45d95dfb010fd95d37796ae93165937b9ae5b04e 100644
--- a/test/test_nifty_operators.py
+++ b/test/test_nifty_operators.py
@@ -26,7 +26,7 @@ from nifty.operators import operator,\
 
 from nifty.nifty_core import POINT_DISTRIBUTION_STRATEGIES
 
-from nifty.rg.nifty_rg import RG_DISTRIBUTION_STRATEGIES,\
+from nifty.rg.rg_space import RG_DISTRIBUTION_STRATEGIES,\
                               gc as RG_GC
 from nifty.lm.nifty_lm import LM_DISTRIBUTION_STRATEGIES,\
                               GL_DISTRIBUTION_STRATEGIES,\
diff --git a/test/test_nifty_spaces.py b/test/test_nifty_spaces.py
index 43aa3c93c018ff5740b7ddef93f00f2c4fac5000..7f89f574696ade3e231fb0cf09fb79f64ce70851 100644
--- a/test/test_nifty_spaces.py
+++ b/test/test_nifty_spaces.py
@@ -18,7 +18,7 @@ from nifty.nifty_core import POINT_DISTRIBUTION_STRATEGIES,\
     space,\
     point_space
 
-from nifty.rg.nifty_rg import RG_DISTRIBUTION_STRATEGIES,\
+from nifty.rg.rg_space import RG_DISTRIBUTION_STRATEGIES,\
                               gc as RG_GC,\
                               RGSpace
 from nifty.lm.nifty_lm import LM_DISTRIBUTION_STRATEGIES,\