diff --git a/.githooks/post-merge b/.githooks/post-merge
index 05326ec..b7acf13 100755
--- a/.githooks/post-merge
+++ b/.githooks/post-merge
@@ -30,7 +30,7 @@ get_commit_for_blob () {
 write_log_file () {
     local now=$(date +"%Y-%m-%dT%T")
     for fn in $(git diff-tree -r HEAD@{1} HEAD --name-only); do
-        if grep -qE "(DC.*json|dc.*hex|dc.*bin|tariff.*json)" <<< $fn; then
+        if grep -qE "(DC2C.*json|dc2c.*bin)" <<< $fn; then
             # called in repository: $fn is e.g. etc/psa_tariff/tariff01.json
             # add '/' prefix
             echo "DOWNLOAD, $(echo $fn | awk '{ printf "/"$0 }'), $now, N/A" >> "$GIT_UPDATE_LOG"