diff --git a/types/knex/index.d.ts b/types/knex/index.d.ts
index 16330b4e3a..f8fdb910f1 100644
--- a/types/knex/index.d.ts
+++ b/types/knex/index.d.ts
@@ -136,7 +136,7 @@ declare namespace Knex {
         decrement(columnName: string, amount?: number): QueryBuilder;
 
         // Others
-        first(...columns: string[]): QueryBuilder;
+        first: Select;
 
         debug(enabled?: boolean): QueryBuilder;
         pluck(column: string): QueryBuilder;
diff --git a/types/knex/knex-tests.ts b/types/knex/knex-tests.ts
index 920b347a70..9e372f29d0 100644
--- a/types/knex/knex-tests.ts
+++ b/types/knex/knex-tests.ts
@@ -401,6 +401,10 @@ knex.table('users').first('id', 'name').then(function(row) {
   console.log(row);
 });
 
+knex.table('users').first(knex.raw('round(sum(products)) as p')).then(function(row) {
+  console.log(row);
+});
+
 // Using trx as a query builder:
 knex.transaction(function(trx) {