diff --git a/btcpay-zsetclocale.sh b/btcpay-zsetclocale.sh
new file mode 100755
index 0000000..ee4444d
--- /dev/null
+++ b/btcpay-zsetclocale.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+# This script is meant to fix the locale of btcpayserver database deployed in docker
+# This change will make sure requests to postgres are properly using indexes when querying on text Primary keys
+# You can run this if you suspect your server is very slow when you have lot's of invoices 
+
+set -e
+
+BTCPAY_CONTAINER_ID=$(docker ps -a -f 'name = _btcpayserver_1' -q)
+POSTGRES_CONTAINER_ID=$(docker ps -a -f 'name = _postgres_1' -q)
+
+DATABASE_NAME=$(docker inspect $BTCPAY_CONTAINER_ID | grep 'BTCPAY_POSTGRES' | sed -rn 's/.*Database=([a-z]+)",/\1/p')
+PG_DUMP="docker exec $POSTGRES_CONTAINER_ID pg_dump"
+PG_RESTORE="docker exec $POSTGRES_CONTAINER_ID pg_restore"
+PSQL="docker exec $POSTGRES_CONTAINER_ID psql -h localhost -p 5432 -U postgres"
+
+if [[ "$($PSQL -c "\l $DATABASE_NAME")" != *"en_US.utf8"* ]]; then
+    echo "Database $DATABASE_NAME already uses locale C"
+    exit 0
+fi
+
+$PG_DUMP -h localhost -p 5432 -U postgres -F c -b -v -f "/tmp/$DATABASE_NAME.backup" $DATABASE_NAME
+$PSQL -c "CREATE DATABASE \"btcpayserver_new\" LC_COLLATE = 'C' TEMPLATE=template0 LC_CTYPE = 'C' ENCODING = 'UTF8'"
+$PG_RESTORE -h localhost -p 5432 -U postgres -d btcpayserver_new -v "/tmp/$DATABASE_NAME.backup"
+$PSQL -c "SELECT pg_terminate_backend(pid) FROM \"pg_stat_activity\" WHERE datname = '$DATABASE_NAME';"
+$PSQL -c "DROP DATABASE \"$DATABASE_NAME\""
+$PSQL -c "ALTER DATABASE \"btcpayserver_new\" RENAME TO \"$DATABASE_NAME\";"
+
+echo "Database $DATABASE_NAME is now using locale C"