diff --git a/libcrc32c.spec b/libcrc32c.spec
index 319ed32..0d5d4ee 100644
--- a/libcrc32c.spec
+++ b/libcrc32c.spec
@@ -1,6 +1,20 @@
 #
 # spec file for package libcrc32c
 #
+# Copyright (c) 2021 SUSE LLC
+#
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
+#
+
 
 %define packagename crc32c
 %define soname 1
@@ -16,11 +30,11 @@ BuildRequires:  cmake
 BuildRequires:  gcc-c++
 
 %description
-This project collects a few CRC32C implementations under an umbrella 
-that dispatches to a suitable implementation based on the host computer's 
+This project collects a few CRC32C implementations under an umbrella
+that dispatches to a suitable implementation based on the host computer's
 hardware capabilities.
 
-CRC32C is specified as the CRC that uses the iSCSI polynomial in RFC 3720. 
+CRC32C is specified as the CRC that uses the iSCSI polynomial in RFC 3720.
 The polynomial was introduced by G. Castagnoli, S. Braeuer and M. Herrmann.
 
 %package -n %{name}%{soname}
@@ -28,11 +42,11 @@ Summary:        CRC32C implementation with support for CPU-specific acceleration
 Group:          System/Libraries
 
 %description -n %{name}%{soname}
-This project collects a few CRC32C implementations under an umbrella 
-that dispatches to a suitable implementation based on the host computer's 
+This project collects a few CRC32C implementations under an umbrella
+that dispatches to a suitable implementation based on the host computer's
 hardware capabilities.
 
-CRC32C is specified as the CRC that uses the iSCSI polynomial in RFC 3720. 
+CRC32C is specified as the CRC that uses the iSCSI polynomial in RFC 3720.
 The polynomial was introduced by G. Castagnoli, S. Braeuer and M. Herrmann.
 
 %package  -n %{name}-devel