diff --git a/python-cchardet.changes b/python-cchardet.changes
index 0bff8a6..512344b 100644
--- a/python-cchardet.changes
+++ b/python-cchardet.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Mon Feb 20 13:12:19 UTC 2023 - ecsos <ecsos@opensuse.org>
+
+- To fix build error correct capitalization of python modul Cython.
+
 -------------------------------------------------------------------
 Sun Feb 19 12:37:25 UTC 2023 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-cchardet.spec b/python-cchardet.spec
index 91a2522..4416f82 100644
--- a/python-cchardet.spec
+++ b/python-cchardet.spec
@@ -25,7 +25,7 @@ Summary:        CChardet is high speed universal character encoding detector
 License:        GPL-2.0-or-later OR LGPL-2.1-or-later OR MPL-1.1
 URL:            https://github.com/PyYoshi/cChardet
 Source:         https://files.pythonhosted.org/packages/source/c/cchardet/cchardet-%{version}.tar.gz
-BuildRequires:  %{python_module cython}
+BuildRequires:  %{python_module Cython}
 BuildRequires:  %{python_module devel}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes