diff --git a/layers/water/water.sql b/layers/water/water.sql
index 58368b3..450860f 100644
--- a/layers/water/water.sql
+++ b/layers/water/water.sql
@@ -150,8 +150,8 @@ RETURNS TABLE(geometry geometry, class text) AS $$
         -- etldoc: water_z9 ->  layer_water:z9
         SELECT * FROM water_z9 WHERE zoom_level = 9
         UNION ALL
-        -- etldoc: water_z9 ->  layer_water:z10                   
-        SELECT * FROM water_z9 WHERE zoom_level = 10
+        -- etldoc: water_z10 ->  layer_water:z10                   
+        SELECT * FROM water_z10 WHERE zoom_level = 10
         UNION ALL
         -- etldoc: water_z11 ->  layer_water:z11        
         SELECT * FROM water_z11 WHERE zoom_level = 11