diff --git a/backend/martin-config.yaml b/backend/martin-config.yaml
index bf25491..d71c3ee 100644
--- a/backend/martin-config.yaml
+++ b/backend/martin-config.yaml
@@ -44,10 +44,5 @@ postgres:
       maxzoom: 14
       bounds: [-180.0, -85.0511, 180.0, 85.0511]
 
-  # Composite source: all four layers in a single tile
-  composites:
-    osm_all:
-      - planet_osm_polygon
-      - planet_osm_line
-      - planet_osm_point
-      - planet_osm_roads
\ No newline at end of file
+composites:
+  osm_all: planet_osm_polygon,planet_osm_line,planet_osm_point,planet_osm_roads