diff --git a/src/core/ngx_conf_file.c b/src/core/ngx_conf_file.c
index 377cad5..589eb0e 100644
--- a/src/core/ngx_conf_file.c
+++ b/src/core/ngx_conf_file.c
@@ -78,7 +78,8 @@
         fd = ngx_open_file(filename->data, NGX_FILE_RDONLY, NGX_FILE_OPEN);
         if (fd == NGX_INVALID_FILE) {
             ngx_conf_log_error(NGX_LOG_EMERG, cf, ngx_errno,
-                              ngx_open_file_n " \"%s\" failed", filename->data);
+                               ngx_open_file_n " \"%s\" failed",
+                               filename->data);
             return NGX_CONF_ERROR;
         }
 
@@ -811,6 +812,11 @@
         *buf = '\0';
     }
 
+    if (cf->conf_file == NULL) {
+        ngx_log_error(level, cf->log, 0, "%s", errstr);
+        return;
+    }
+
     ngx_log_error(level, cf->log, 0, "%s in %s:%ui",
                   errstr, cf->conf_file->file.name.data, cf->conf_file->line);
 }