diff --git a/doc/src/Build_extras.rst b/doc/src/Build_extras.rst
index 34a75b66dc..adbfa02952 100644
--- a/doc/src/Build_extras.rst
+++ b/doc/src/Build_extras.rst
@@ -741,7 +741,7 @@ MLIAP package
 Building the MLIAP package requires including the :ref:`SNAP <PKG-SNAP>`
 package.  There will be an error message if this requirement is not satisfied.
 Using the *mliappy* model also requires enabling the :ref:`PYTHON <PKG-PYTHON>`
-package **and** requires you have the `cython <https://ctyhon.org>`_ software
+package **and** requires you have the `cython <https://cython.org>`_ software
 installed and with it a working ``cythonize`` command.  This feature requires
 compiling LAMMPS with Python version 3.6 or later.
 
@@ -765,16 +765,17 @@ compiling LAMMPS with Python version 3.6 or later.
 
       The build uses the ``lib/python/Makefile.mliap_python`` file in the
       compile/link process to add a rule to update the files generated by
-      the ``cythonize`` command in case the corresponding .pyx file was
-      modified.  You may need to need to modify ``lib/python/Makefile.lammps``
+      the ``cythonize`` command in case the corresponding .pyx file(s) were
+      modified.  You may need to modify ``lib/python/Makefile.lammps``
       if the LAMMPS build fails.
-      To manually enforce building MLIAP with Python support, you can add
+      To manually enforce building MLIAP with Python support enabled, 
+      you can add
       ``-DMLIAP_PYTHON`` to the ``LMP_INC`` variable in your machine makefile.
       You may have to manually run the cythonize command on .pyx file(s)
       in the ``src`` folder, if this is not automatically done during
       installing the MLIAP package.  Please do **not** run ``cythonize``
       in the ``src/MLIAP`` folder, as that can lead to compilation errors
-      if PYTHON support is not included.
+      if Python support is not enabled.
       If you did by accident, please remove the generated .cpp and .h files.
 
 ----------