diff --git a/python-snowballstemmer.spec b/python-snowballstemmer.spec
index 023dae2..9500139 100644
--- a/python-snowballstemmer.spec
+++ b/python-snowballstemmer.spec
@@ -25,6 +25,8 @@ License:        BSD-2-Clause
 Group:          Development/Languages/Python
 Url:            https://github.com/shibukawa/snowball_py
 Source:         https://pypi.python.org/packages/source/s/snowballstemmer/snowballstemmer-%{version}.tar.gz
+BuildRequires:  %{python_module base}
+BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildArch:      noarch
@@ -49,6 +51,7 @@ accelerate.
 
 %install
 %python_install
+%python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %files %{python_files}
 %defattr(-,root,root,-)