diff --git a/calmerge/__init__.py b/calmerge/__init__.py
index 4ae5bdf..e24a657 100644
--- a/calmerge/__init__.py
+++ b/calmerge/__init__.py
@@ -11,7 +11,7 @@ def get_aiohttp_app(config: Config) -> web.Application:
     app.add_routes(
         [
             web.get("/.health/", views.healthcheck),
-            web.get("/{name}.ics", views.calendar),
+            web.get("/{slug}.ics", views.calendar),
         ]
     )
 
diff --git a/calmerge/__main__.py b/calmerge/__main__.py
index 8f4b071..972b6b9 100644
--- a/calmerge/__main__.py
+++ b/calmerge/__main__.py
@@ -46,7 +46,7 @@ def write_calendars(args: argparse.Namespace) -> None:
     config = Config.from_file(args.config)
 
     for calendar_config in config.calendars:
-        output_file = output_dir / f"{calendar_config.name}.ics"
+        output_file = output_dir / f"{calendar_config.slug}.ics"
         print("Saving", output_file)
         write_calendar(calendar_config, output_file)
 
diff --git a/calmerge/calendars.py b/calmerge/calendars.py
index 82f4892..42d52ac 100644
--- a/calmerge/calendars.py
+++ b/calmerge/calendars.py
@@ -76,3 +76,17 @@ def create_offset_calendar_events(
 
     for component in new_components:
         calendar.add_component(component)
+
+
+def set_calendar_metadata(
+    calendar: icalendar.Calendar, calendar_config: CalendarConfig
+) -> None:
+    """
+    Mutate a calendar to set metadata based on config
+    """
+
+    if calendar_config.name:
+        calendar.add("X-WR-CALNAME", calendar_config.name)
+
+    if calendar_config.description:
+        calendar.add("X-WR-CALDESC", calendar_config.description)
diff --git a/calmerge/config.py b/calmerge/config.py
index 77e8926..b19505f 100644
--- a/calmerge/config.py
+++ b/calmerge/config.py
@@ -34,7 +34,9 @@ def validate_header(self, auth_header: str) -> bool:
 
 
 class CalendarConfig(BaseModel):
-    name: str
+    slug: str
+    name: str | None = None
+    description: str | None = None
     urls: list[HttpUrl]
     offset_days: list[int] = Field(default_factory=list)
     auth: AuthConfig | None = None
@@ -82,7 +84,7 @@ def from_file(cls, path: Path) -> "Config":
         with path.open(mode="rb") as f:
             return Config.model_validate(tomllib.load(f))
 
-    def get_calendar_by_name(self, name: str) -> CalendarConfig | None:
+    def get_calendar_by_slug(self, slug: str) -> CalendarConfig | None:
         return next(
-            (calendar for calendar in self.calendars if calendar.name == name), None
+            (calendar for calendar in self.calendars if calendar.slug == slug), None
         )
diff --git a/calmerge/static.py b/calmerge/static.py
index 8a1b020..3e6e0ea 100644
--- a/calmerge/static.py
+++ b/calmerge/static.py
@@ -1,7 +1,11 @@
 import asyncio
 from pathlib import Path
 
-from .calendars import create_offset_calendar_events, fetch_merged_calendar
+from .calendars import (
+    create_offset_calendar_events,
+    fetch_merged_calendar,
+    set_calendar_metadata,
+)
 from .config import CalendarConfig
 
 
@@ -11,4 +15,6 @@ def write_calendar(calendar_config: CalendarConfig, output_file: Path) -> None:
     if offset_days := calendar_config.offset_days:
         create_offset_calendar_events(merged_calendar, offset_days)
 
+    set_calendar_metadata(merged_calendar, calendar_config)
+
     output_file.write_bytes(merged_calendar.to_ical())
diff --git a/calmerge/views.py b/calmerge/views.py
index 5dcae1c..7788cac 100644
--- a/calmerge/views.py
+++ b/calmerge/views.py
@@ -1,6 +1,10 @@
 from aiohttp import web
 
-from .calendars import create_offset_calendar_events, fetch_merged_calendar
+from .calendars import (
+    create_offset_calendar_events,
+    fetch_merged_calendar,
+    set_calendar_metadata,
+)
 
 
 async def healthcheck(request: web.Request) -> web.Response:
@@ -10,7 +14,7 @@ async def healthcheck(request: web.Request) -> web.Response:
 async def calendar(request: web.Request) -> web.Response:
     config = request.app["config"]
 
-    calendar_config = config.get_calendar_by_name(request.match_info["name"])
+    calendar_config = config.get_calendar_by_slug(request.match_info["slug"])
 
     if calendar_config is None:
         raise web.HTTPNotFound()
@@ -25,4 +29,6 @@ async def calendar(request: web.Request) -> web.Response:
     if offset_days := calendar_config.offset_days:
         create_offset_calendar_events(calendar, offset_days)
 
+    set_calendar_metadata(calendar, calendar_config)
+
     return web.Response(body=calendar.to_ical())
diff --git a/tests/calendars.toml b/tests/calendars.toml
index 25d493c..d4dab84 100644
--- a/tests/calendars.toml
+++ b/tests/calendars.toml
@@ -1,18 +1,24 @@
 [[calendar]]
-name = "python"
+slug = "python"
+name = "Python"
+description = "Python EOL"
 urls = [
     "https://endoflife.date/calendar/python.ics",
 ]
 
 [[calendar]]
-name = "python-offset"
+slug = "python-offset"
+name = "Python (with offset)"
+description = "Python EOL (with offset)"
 urls = [
     "https://endoflife.date/calendar/python.ics",
 ]
 offset_days = [365]
 
 [[calendar]]
-name = "python-authed"
+slug = "python-authed"
+name = "Python (with auth)"
+description = "Python EOL (with auth)"
 urls = [
     "https://endoflife.date/calendar/python.ics",
 ]
diff --git a/tests/test_calendar_view.py b/tests/test_calendar_view.py
index 7d6d2e5..56f2e61 100644
--- a/tests/test_calendar_view.py
+++ b/tests/test_calendar_view.py
@@ -12,6 +12,9 @@ async def test_retrieves_calendars(client: TestClient) -> None:
     calendar = icalendar.Calendar.from_ical(await response.text())
     assert not calendar.is_broken
 
+    assert calendar["X-WR-CALNAME"] == "Python"
+    assert calendar["X-WR-CALDESC"] == "Python EOL"
+
 
 async def test_unknown_calendar(client: TestClient) -> None:
     response = await client.get("/unknown.ics")
diff --git a/tests/test_config.py b/tests/test_config.py
index 2324c41..c164378 100644
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -12,7 +12,7 @@
 
 def test_non_unique_urls() -> None:
     with pytest.raises(ValidationError) as e:
-        CalendarConfig(name="test", urls=["https://example.com"] * 10)  # type: ignore [list-item]
+        CalendarConfig(slug="test", urls=["https://example.com"] * 10)  # type: ignore [list-item]
 
     assert e.value.errors()[0]["msg"] == "URLs must be unique"
 
@@ -20,7 +20,7 @@ def test_non_unique_urls() -> None:
 def test_non_unique_offset_days() -> None:
     with pytest.raises(ValidationError) as e:
         CalendarConfig(
-            name="test",
+            slug="test",
             urls=["https://example.com"],  # type: ignore [list-item]
             offset_days=[1, 2, 3, 2, 1],
         )
@@ -31,7 +31,7 @@ def test_non_unique_offset_days() -> None:
 def test_invalid_offset_days() -> None:
     with pytest.raises(ValidationError) as e:
         CalendarConfig(
-            name="test",
+            slug="test",
             urls=["https://example.com"],  # type: ignore [list-item]
             offset_days=[MAX_OFFSET + 1],
         )
@@ -46,7 +46,7 @@ def test_urls_expand_env_var(monkeypatch: pytest.MonkeyPatch) -> None:
     monkeypatch.setenv("FOO", "BAR")
 
     calendar_config = CalendarConfig(
-        name="test",
+        slug="test",
         urls=["https://example.com/$FOO"],  # type: ignore [list-item]
     )
 
diff --git a/tests/test_write.py b/tests/test_write.py
index 4482612..e3e780a 100644
--- a/tests/test_write.py
+++ b/tests/test_write.py
@@ -20,4 +20,4 @@ def test_write_config(tmp_path: Path, config: Config, config_path: Path) -> None
     assert len(list(tmp_path.glob("*.ics"))) == len(config.calendars)
 
     for calendar_config in config.calendars:
-        assert tmp_path.joinpath(f"{calendar_config.name}.ics").is_file()
+        assert tmp_path.joinpath(f"{calendar_config.slug}.ics").is_file()