diff --git a/nginx.conf b/nginx.conf
index 5c7bd83..d09ecfa 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -1,6 +1,6 @@
 worker_processes  1;
 env $LOG_LEVEL;
-error_log /dev/stdout $LOG_LEVEL;
+error_log /dev/stdout ${LOG_LEVEL};
 
 events {
     worker_connections  1024;