diff --git a/crawler/1_dump_listings.py b/crawler/1_dump_listings.py
index da36915..43c2512 100644
--- a/crawler/1_dump_listings.py
+++ b/crawler/1_dump_listings.py
@@ -28,11 +28,14 @@ async def dump_listings(
         parameters: QueryParameters,
         data_dir: pathlib.Path = pathlib.Path("data/rs/"),
 ) -> list[Listing]:
-    districts = {
-        district: locid
-        for district, locid in get_districts().items()
-        if district in parameters.district_names
-    }
+    if parameters.district_names:
+        districts = {
+            district: locid
+            for district, locid in get_districts().items()
+            if district in parameters.district_names
+        }
+    else:
+        districts = get_districts()
     print("Valid districts to scrape:", districts.keys())
     listings = []