diff --git a/pg/sql/0.0.1/04_dot_density.sql b/pg/sql/0.0.1/04_dot_density.sql
index 5d9ba35..b0f3604 100644
--- a/pg/sql/0.0.1/04_dot_density.sql
+++ b/pg/sql/0.0.1/04_dot_density.sql
@@ -51,4 +51,4 @@ BEGIN
   RETURN ST_Collect(points);
 END;
 $$
-LANGUAGE plpgsql VOLATILE
+LANGUAGE plpgsql VOLATILE;