diff --git a/python-datrie.changes b/python-datrie.changes
index 682ecc3..15d347a 100644
--- a/python-datrie.changes
+++ b/python-datrie.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Mar 22 14:18:03 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Regenerate all the cython files
+- Run fdupes
+
 -------------------------------------------------------------------
 Mon Mar  4 09:56:56 UTC 2019 - John Vandenberg <jayvdb@gmail.com>
 
diff --git a/python-datrie.spec b/python-datrie.spec
index fd97137..d78d6b6 100644
--- a/python-datrie.spec
+++ b/python-datrie.spec
@@ -23,7 +23,7 @@ Release:        0
 Summary:        Trie data structure for Python
 License:        LGPL-2.1-or-later
 Group:          Development/Languages/Python
-Url:            https://github.com/kmike/datrie
+URL:            https://github.com/kmike/datrie
 Source:         https://files.pythonhosted.org/packages/source/d/datrie/datrie-%{version}.tar.gz
 Patch0:         datrie-bigendian.patch
 Patch1:         reproducible.patch
@@ -33,9 +33,8 @@ BuildRequires:  %{python_module hypothesis}
 BuildRequires:  %{python_module pytest-runner}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
+BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
-
 %python_subpackages
 
 %description
@@ -47,6 +46,7 @@ A trie data structure for Python (2.x and 3.x). Uses libdatrie.
 %patch1 -p1
 pushd src
 cython datrie.pyx
+cython *.pxd
 popd
 
 %build
@@ -54,6 +54,7 @@ popd
 
 %install
 %python_install
+%python_expand %fdupes %{buildroot}%{$python_sitearch}
 
 %check
 %python_exec setup.py test