diff --git a/python-setuptools-rust.changes b/python-setuptools-rust.changes
index f781756..6c8a2a4 100644
--- a/python-setuptools-rust.changes
+++ b/python-setuptools-rust.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Jul 18 07:35:46 UTC 2022 - Matej Cepl <mcepl@suse.com>
+
+- Deduplicate files in python_sitelib.
+
 -------------------------------------------------------------------
 Sat Jul 16 15:56:02 UTC 2022 - Arun Persaud <arun@gmx.de>
 
diff --git a/python-setuptools-rust.spec b/python-setuptools-rust.spec
index 1ff9779..e11921e 100644
--- a/python-setuptools-rust.spec
+++ b/python-setuptools-rust.spec
@@ -35,8 +35,9 @@ BuildRequires:  %{python_module typing_extensions >= 3.7.4.3}
 BuildRequires:  %{python_module wheel}
 # test requirements
 BuildRequires:  %{python_module pytest}
-BuildRequires:  %{python_module nox}
 BuildRequires:  %{python_module Sphinx}
+BuildRequires:  %{python_module nox}
+BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 Requires:       python-semantic_version >= 2.8.2
 Requires:       python-typing_extensions >= 3.7.4.3
@@ -58,11 +59,12 @@ were written in C.
 
 %install
 %python_install
+%python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
 export LANG=en_US.UTF-8
 %pytest tests/
- 
+
 %files %{python_files}
 %license LICENSE
 %doc README.md