diff --git a/Dockerfile b/Dockerfile
index 8b540bc..92fa098 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -44,7 +44,7 @@ RUN cp config.dist.php config.php && \
     -e "s/\['db'\]\['user'\] = \"phpipam\"/\['db'\]\['user'\] = getenv(\"MYSQL_ENV_MYSQL_USER\") ?: \"root\"/" \
     -e "s/\['db'\]\['pass'\] = \"phpipamadmin\"/\['db'\]\['pass'\] = getenv(\"MYSQL_ENV_MYSQL_PASSWORD\")/" \
     -e "s/\['db'\]\['name'\] = \"phpipam\"/\['db'\]\['name'\] = getenv(\"MYSQL_ENV_MYSQL_DATABASE\")/" \
-    -e "s/\['db'\]\['port'\] = 3306;/\['db'\]\['port'\] = getenv(\"MYSQL_ENV_MYSQL_PORT\")/";\n\n\$password_file = getenv(\"MYSQL_ENV_MYSQL_PASSWORD_FILE\");\nif(file_exists(\$password_file))\n\$db\['db'\]\['pass'\] = preg_replace(\"\/\\\\s+\/\", \"\", file_get_contents(\$password_file));/" \
+    -e "s/\['db'\]\['port'\] = \"3306\"/\['db'\]\['port'\] = getenv(\"MYSQL_ENV_MYSQL_PORT\")/" \
     config.php
 
 # Setup crontab