diff --git a/baize/asgi/routing.py b/baize/asgi/routing.py
index cb72ab0..125101d 100644
--- a/baize/asgi/routing.py
+++ b/baize/asgi/routing.py
@@ -20,7 +20,11 @@ class Router(BaseRouter[ASGIApp]):
     async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
         if scope["type"] == "lifespan":  # pragma: no cover
             raise RuntimeError("Unsupported lifespan in `Router`")
-        result = self.search(scope["path"])
+        root_path = scope.get("root_path", "")
+        path = scope["path"]
+        if root_path and path.startswith(root_path):
+            path = path[len(root_path) :]
+        result = self.search(path)
         if result is None:
             response: ASGIApp = Response(404)
         else:
@@ -48,14 +52,16 @@ class Subpaths(BaseSubpaths[ASGIApp]):
     async def __call__(self, scope: Scope, receive: Receive, send: Send) -> None:
         if scope["type"] == "lifespan":  # pragma: no cover
             raise RuntimeError("Unsupported lifespan in `Subpaths`")
+        root_path = scope.get("root_path", "")
         path = scope["path"]
+        if root_path and path.startswith(root_path):
+            path = path[len(root_path) :]
         result = self.search(path)
         if result is None:
             response: ASGIApp = Response(404)
         else:
             prefix, response = result
-            scope["root_path"] = scope.get("root_path", "") + prefix
-            scope["path"] = path[len(prefix) :]
+            scope["root_path"] = root_path + prefix
         return await response(scope, receive, send)
 
 
diff --git a/baize/datastructures.py b/baize/datastructures.py
index 4b7c020..d6fdb98 100644
--- a/baize/datastructures.py
+++ b/baize/datastructures.py
@@ -204,7 +204,7 @@ def __init__(
         elif scope is not None:
             scheme = scope.get("scheme", "http")
             server = scope.get("server", None)
-            path = scope.get("root_path", "") + scope["path"]
+            path = scope["path"]
             query_string = scope.get("query_string", b"")
 
             host_header = None
diff --git a/tests/test_asgi.py b/tests/test_asgi.py
index 019deed..6a051b6 100644
--- a/tests/test_asgi.py
+++ b/tests/test_asgi.py
@@ -1106,12 +1106,30 @@ async def path(request: Request) -> Response:
         app=Subpaths(
             ("/frist", root),
             ("/latest", path),
+            (
+                "/s",
+                Subpaths(
+                    ("/frist", root),
+                    ("/latest", path),
+                ),
+            ),
+            (
+                "/r",
+                Router(
+                    ("/frist", root),
+                    ("/latest", path),
+                ),
+            ),
         ),
         base_url="http://testServer/",
     ) as client:
         assert (await client.get("/")).status_code == 404
         assert (await client.get("/frist")).text == "/frist"
-        assert (await client.get("/latest")).text == ""
+        assert (await client.get("/latest/")).text == "/latest/"
+        assert (await client.get("/s/frist/")).text == "/s/frist"
+        assert (await client.get("/s/latest/")).text == "/s/latest/"
+        assert (await client.get("/r/frist")).text == "/r"
+        assert (await client.get("/r/latest")).text == "/r/latest"
 
     async with httpx.AsyncClient(
         app=Subpaths(