diff --git a/arkane/common.py b/arkane/common.py
index cc7e524cd6..b2faf9d812 100644
--- a/arkane/common.py
+++ b/arkane/common.py
@@ -347,7 +347,7 @@ def get_element_mass(input_element, isotope=None):
     else:
         # no specific isotope is required
         if len(mass_list[0]) == 2:
-            # isotop weight is unavailable, use the first entry
+            # isotope weight is unavailable, use the first entry
             mass = mass_list[0][1]
             logging.warn("Assuming isotop {0} is representative of element {1}".format(mass_list[0][0], symbol))
         else:
diff --git a/documentation/source/users/arkane/input.rst b/documentation/source/users/arkane/input.rst
index 17ec0f0d0b..ab18900510 100644
--- a/documentation/source/users/arkane/input.rst
+++ b/documentation/source/users/arkane/input.rst
@@ -326,7 +326,9 @@ scan in the following format::
                  .                       .
            6.2831853072            0.0000000000
 
-The ``Energy`` can be in units of ``kJ/mol``, ``J/mol``, ``cal/mol``, ``kcal/mol``, ``cm^-1`` or ``hartree``.
+The ``Energy`` can be in units of ``kJ/mol``, ``J/mol`` (default), ``cal/mol``, ``kcal/mol``, ``cm^-1`` or ``hartree``,
+and the ``Angle`` can be either in ``radians`` (default) or in ``degrees``. Units must be specified in parenthesis
+if different than the default.
 
 The ``symmetry`` parameter will usually equal either 1, 2 or 3. It could be determined automatically by Arkane
 (by simply not specifying it altogether), however it is always better to explicitly specify it if it is known. If it is