diff --git a/gdcm.spec b/gdcm.spec
index 4dd3eca..13b677a 100644
--- a/gdcm.spec
+++ b/gdcm.spec
@@ -12,7 +12,8 @@ Name:       gdcm
 Version:    3.0.23
 Release:    %autorelease
 Summary:    Grassroots DiCoM is a C++ library to parse DICOM medical files
-License:    BSD
+# SPDX
+License:    BSD-3-Clause
 URL:        http://gdcm.sourceforge.net/wiki/index.php/Main_Page
 # Use github release
 Source0:    https://github.com/malaterre/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz