diff --git a/build-aux/update-copyright.sh b/build-aux/update-copyright.sh
index 3a63c6f3..52ac72b2 100755
--- a/build-aux/update-copyright.sh
+++ b/build-aux/update-copyright.sh
@@ -1,29 +1,29 @@
 #!/bin/sh
 #
 # Copyright (C) 2017-2022 Red Hat, Inc.  All rights reserved.
 #
 # Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
 #
 # This software licensed under GPL-2.0+
 #
 
 # script to update copyright dates across the tree
 
 enddate=$(date +%Y)
 
 input=$(grep -ril -e "Copyright.*Red Hat" |grep -v .swp |grep -v update-copyright)
 for i in $input; do
 	startdate=$(git log --follow "$i" | grep ^Date: | tail -n 1 | awk '{print $6}')
 	if [ "$startdate" != "$enddate" ]; then
-		sed -i -e 's#Copyright (C).*Red Hat#Copyright (C) '$startdate'-'$enddate' Red Hat#g' $i
+		sed -i -e 's#[Cc]opyright ([Cc]).*Red Hat#Copyright (C) '$startdate'-'$enddate' Red Hat#g' $i
 	else
-		sed -i -e 's#Copyright (C).*Red Hat#Copyright (C) '$startdate' Red Hat#g' $i
+		sed -i -e 's#[Cc]opyright ([Cc]).*Red Hat#Copyright (C) '$startdate' Red Hat#g' $i
 	fi
 done
 
 input=$(find . -type f |grep -v ".git")
 for i in $input; do
 	if [ -z "$(grep -i "Copyright" $i)" ]; then
 		echo "WARNING: $i appears to be missing Copyright information"
 	fi
 done