diff --git a/starlette/schemas.py b/starlette/schemas.py
index f939cb5a3..72d93e7d7 100644
--- a/starlette/schemas.py
+++ b/starlette/schemas.py
@@ -4,7 +4,7 @@
 
 from starlette.requests import Request
 from starlette.responses import Response
-from starlette.routing import BaseRoute, Mount, Route
+from starlette.routing import BaseRoute, Host, Mount, Route
 
 try:
     import yaml
@@ -49,9 +49,12 @@ def get_endpoints(
         endpoints_info: list = []
 
         for route in routes:
-            if isinstance(route, Mount):
-                path = self._remove_converter(route.path)
+            if isinstance(route, (Mount, Host)):
                 routes = route.routes or []
+                if isinstance(route, Mount):
+                    path = self._remove_converter(route.path)
+                else:
+                    path = ""
                 sub_endpoints = [
                     EndpointInfo(
                         path="".join((path, sub_endpoint.path)),
diff --git a/tests/test_schemas.py b/tests/test_schemas.py
index 26884b391..6c5b1d603 100644
--- a/tests/test_schemas.py
+++ b/tests/test_schemas.py
@@ -1,6 +1,6 @@
 from starlette.applications import Starlette
 from starlette.endpoints import HTTPEndpoint
-from starlette.routing import Mount, Route, WebSocketRoute
+from starlette.routing import Host, Mount, Route, Router, WebSocketRoute
 from starlette.schemas import SchemaGenerator
 
 schemas = SchemaGenerator(
@@ -123,6 +123,7 @@ def schema(request):
         Route("/no-docstring", endpoint=no_docstring),
         Route("/schema", endpoint=schema, methods=["GET"], include_in_schema=False),
         Mount("/subapp", subapp),
+        Host("sub.domain.com", app=Router(routes=[Mount("/subapp2", subapp)])),
     ]
 )
 
@@ -165,6 +166,13 @@ def test_schema_generation():
                     }
                 }
             },
+            "/subapp2/subapp-endpoint": {
+                "get": {
+                    "responses": {
+                        200: {"description": "This endpoint is part of a subapp."}
+                    }
+                }
+            },
             "/users": {
                 "get": {
                     "responses": {
@@ -224,6 +232,11 @@ def test_schema_generation():
       responses:
         200:
           description: This endpoint is part of a subapp.
+  /subapp2/subapp-endpoint:
+    get:
+      responses:
+        200:
+          description: This endpoint is part of a subapp.
   /users:
     get:
       responses: