diff --git a/bopytex/bopytex.py b/bopytex/bopytex.py
index 7651164..8ecd864 100755
--- a/bopytex/bopytex.py
+++ b/bopytex/bopytex.py
@@ -12,7 +12,7 @@ import sys
 
 from path import Path
 import pytex
-import pymath
+import mapytex
 import bopytex.filters as filters
 
 formatter = logging.Formatter('%(name)s :: %(levelname)s :: %(message)s')
@@ -25,16 +25,17 @@ logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG)
 logger.addHandler(steam_handler)
 
+
 def setup():
     mapytex_tools = {
-        "Expression": pymath.Expression,
-        "Polynom": pymath.Polynom,
-        "Fraction": pymath.Fraction,
-        "Equation": pymath.Equation,
-        "random_str": pymath.random_str,
-        "random_pythagore": pymath.random_pythagore,
-        "Dataset": pymath.Dataset,
-        "WeightedDataset": pymath.WeightedDataset,
+        "Expression": mapytex.Expression,
+        "Polynom": mapytex.Polynom,
+        "Fraction": mapytex.Fraction,
+        "Equation": mapytex.Equation,
+        "random_str": mapytex.random_str,
+        "random_pythagore": mapytex.random_pythagore,
+        "Dataset": mapytex.Dataset,
+        "WeightedDataset": mapytex.WeightedDataset,
         }
     pytex.update_export_dict(mapytex_tools)