diff --git a/huwawei_lte_exporter b/huwawei_lte_exporter
index 7010637..7c876f7 100755
--- a/huwawei_lte_exporter
+++ b/huwawei_lte_exporter
@@ -76,8 +76,6 @@ config = configparser.ConfigParser()
 config.read('huwawei_lte_exporter.ini')
 MANDATORY_ENV_VARS = ["ROUTER_ADDRESS", "ROUTER_USER", "ROUTER_PASS", "PROM_PORT"]
 for var in MANDATORY_ENV_VARS:
-	if not config.has_option('DEFAULT', var):
-		raise EnvironmentError("Failed because {} is not set.".format(var))
 	if var in os.environ:
 		config['DEFAULT'][var] = os.environ[var]