diff --git a/gns3server/api/routes/index.py b/gns3server/api/routes/index.py
index ebd22c096..365840b8c 100644
--- a/gns3server/api/routes/index.py
+++ b/gns3server/api/routes/index.py
@@ -52,7 +52,7 @@ async def web_ui(file_path: str):
 
     static = get_resource(file_path)
 
-    if static is None or not os.path.exists(static):
+    if static is None or not os.path.exists(static) or os.path.isdir(static):
         static = get_resource(os.path.join("static", "web-ui", "index.html"))
 
     if static is None:
diff --git a/gns3server/api/server.py b/gns3server/api/server.py
index 224a8314b..196ddb504 100644
--- a/gns3server/api/server.py
+++ b/gns3server/api/server.py
@@ -73,7 +73,7 @@ def get_application() -> FastAPI:
 
     application.include_router(index.router, tags=["Index"])
     application.include_router(controller.router, prefix="/v3")
-    application.mount("/static", StaticFiles(packages=[('gns3server', 'static')]), name="static")
+    application.mount("/static", StaticFiles(packages=[('gns3server', 'static')], html=True), name="static")
     application.mount("/v3/compute", compute_api, name="compute")
 
     return application