diff --git a/api/onnx_web/diffusers/utils.py b/api/onnx_web/diffusers/utils.py
index b9dc4394..ae55669c 100644
--- a/api/onnx_web/diffusers/utils.py
+++ b/api/onnx_web/diffusers/utils.py
@@ -24,7 +24,7 @@ REGION_TOKEN = compile(
     r"\<region:(\d+):(\d+):(\d+):(\d+):(-?[\.|\d]+):(-?[\.|\d]+_?[TLBR]*):([^\>]+)\>"
 )
 RESEED_TOKEN = compile(r"\<reseed:(\d+):(\d+):(\d+):(\d+):(-?\d+)\>")
-WILDCARD_TOKEN = compile(r"__([-/\\\w]+)__")
+WILDCARD_TOKEN = compile(r"__([-/\\\w\.]+)__")
 
 INTERVAL_RANGE = compile(r"(\w+)-{(\d+),(\d+)(?:,(\d+))?}")
 ALTERNATIVE_RANGE = compile(r"\(([^\)]+)\)")
diff --git a/api/onnx_web/server/load.py b/api/onnx_web/server/load.py
index 2dd37157..defd2ef2 100644
--- a/api/onnx_web/server/load.py
+++ b/api/onnx_web/server/load.py
@@ -2,7 +2,7 @@ from collections import defaultdict
 from functools import cmp_to_key
 from glob import glob
 from logging import getLogger
-from os import path
+from os import path, sep
 from typing import Any, Dict, List, Optional, Union
 
 import torch
@@ -516,7 +516,19 @@ def load_wildcards(server: ServerContext) -> None:
     for file in structured_files:
         data = load_config(path.join(wildcard_path, file))
         logger.debug("loading structured wildcards from %s: %s", file, data)
+        parse_wildcards(data, root_key=path.splitext(file)[0])
 
-        for key, values in data.items():
-            if isinstance(values, list):
-                wildcard_data[key].extend(values)
+
+def parse_wildcards(data: Any, root_key: Optional[str]=None) -> None:
+    global wildcard_data
+
+    for key, values in data.items():
+        if root_key is not None:
+            key=f"{root_key}{sep}{key}"
+        
+        if isinstance(values, dict):
+            parse_wildcards(values, root_key=key)
+        elif isinstance(values, list):
+            wildcard_data[key].extend(values)
+        else:
+            logger.warning("unable to parse key: %s from wildcard path: %s", key, root_key)