diff --git a/README.md b/README.md
index 951bfa8..91b1889 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ TREX library for efficient I/O.
 
 - python3       (>= 3.6)
 - Emacs         (>= 26.0)
-- SWIG          (>= 4.0)   [required for the Python API] 
+- SWIG          (>= 4.0)   [required for the Python API]
 
 ## Installation procedure from the GitHub repo clone (for developers):
 
@@ -63,7 +63,7 @@ The aforementioned instructions rely on [Autotools](https://www.gnu.org/software
 
 ## Installation procedure for conda users
 
-The official releases (tarballs) of TREXIO `>2.0.0` are also available via the `conda-forge` channel. 
+The official releases of TREXIO `>2.0.0` are also available via the `conda-forge` channel.
 The pre-compiled stable binaries of `trexio` can be installed as follows:
 
 ```
diff --git a/python/MANIFEST.in b/python/MANIFEST.in
index 7c16f42..2d44f50 100644
--- a/python/MANIFEST.in
+++ b/python/MANIFEST.in
@@ -1,8 +1,9 @@
-include src/*.c 
-include src/trexio*.h 
-include examples/notebooks/* 
-include examples/README.md 
+include src/*.c
+include src/trexio*.h
+include examples/notebooks/*
+include examples/README.md
 include requirements.txt tools/set_NUMPY_INCLUDEDIR.sh
+include test/benzene_data.py
 
 exclude examples/LICENSE
 exclude examples/requirements.txt