diff --git a/MANIFEST.in b/MANIFEST.in
index 965f1c8..a5d321d 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,2 +1,2 @@
-incude *.rst
+include *.rst
 recursive-include documentation *.txt *.rst
diff --git a/opytex/opytex.py b/opytex/opytex.py
index f3db549..8d36894 100755
--- a/opytex/opytex.py
+++ b/opytex/opytex.py
@@ -21,7 +21,7 @@ from pymath.random_expression import random_str
 export_dict = {}
 export_dict.update(m.__dict__)
 export_dict.update(rd.__dict__)
-export_dict.update(__builtins__.__dict__)
+export_dict.update(__builtins__)
 export_dict.update({"Expression":Expression,\
         "Polynom":Polynom,\
         "Polynom_deg2":Polynom_deg2,\