diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 0c70f98..45fa1d0 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-if [[ -f "$JOOMLA_DB_PASSWORD_FILE" ]]; then
+if [ -n "$JOOMLA_DB_PASSWORD_FILE" ] && [ -f "$JOOMLA_DB_PASSWORD_FILE" ]; then
         JOOMLA_DB_PASSWORD=$(cat "$JOOMLA_DB_PASSWORD_FILE")
 fi