diff --git a/src/bbl_config.c b/src/bbl_config.c
index d4758200..bc1d30bb 100644
--- a/src/bbl_config.c
+++ b/src/bbl_config.c
@@ -746,7 +746,7 @@ json_parse_config (json_t *root, bbl_ctx_s *ctx) {
                 l2tp_server->data_offset = json_boolean_value(value);
             }
         }   
-    } else if (json_is_object(sub)) {
+    } else if (json_is_object(section)) {
         fprintf(stderr, "JSON config error: List expected in L2TP server configuration but dictionary found\n");
     }