diff --git a/components/primereserver.py b/components/primereserver.py
index 74ac978..42ce3b9 100644
--- a/components/primereserver.py
+++ b/components/primereserver.py
@@ -841,3 +841,10 @@ async def primere_uniapi_schema_read(request):
         registry = api_schema_registry.normalize_registry(raw_schema)
 
     return web.json_response({"success": True, "source": source_name, "warning": warning, "registry": registry,})
+
+routes25 = PromptServer.instance.routes
+@routes25.get('/primere_model_concept_read')
+async def primere_model_concept_read(request):
+    json_path = os.path.join(PRIMERE_ROOT, 'front_end', 'model_concept.json')
+    data = utility.json2tuple(json_path) or {}
+    return web.json_response(data)
diff --git a/front_end/model_concepts.js b/front_end/model_concepts.js
index ac17417..20e4554 100644
--- a/front_end/model_concepts.js
+++ b/front_end/model_concepts.js
@@ -3,7 +3,6 @@ import { ComfyWidgets } from "/scripts/widgets.js";
 import { applyPrimereButtonStyle, showToast } from "./frontend_helper.js";
 
 const TARGET_NODE_NAME = "PrimereModelControl";
-const CONCEPT_JSON_URL = new URL("/extensions/ComfyUI_Primere_Nodes/model_concept.json", import.meta.url).href;
 
 const JSON_EXCLUDE_KEYS = new Set(["model_name", "model_concept"]);
 
@@ -56,7 +55,7 @@ function collectNodeData(node, includeLoraToggles = false) {
 async function loadConceptValues(node, key, silent = false) {
     let data;
     try {
-        const response = await fetch(CONCEPT_JSON_URL + "?t=" + Date.now());
+        const response = await fetch("/primere_model_concept_read");
         if (!response.ok) {
             if (!silent) showToast("error", `No saved settings found. Save settings for "${key}" first.`);
             return;