diff --git a/types/knex/index.d.ts b/types/knex/index.d.ts
index 624fde2d01..20418e1fac 100644
--- a/types/knex/index.d.ts
+++ b/types/knex/index.d.ts
@@ -155,7 +155,7 @@ declare namespace Knex {
         pluck(column: string): QueryBuilder;
 
         insert(data: any, returning?: string | string[]): QueryBuilder;
-        modify(callback: QueryCallback, ...args: any[]): QueryBuilder;
+        modify(callback: QueryCallbackWithArgs, ...args: any[]): QueryBuilder;
         update(data: any, returning?: string | string[]): QueryBuilder;
         update(columnName: string, value: Value, returning?: string | string[]): QueryBuilder;
         returning(column: string | string[]): QueryBuilder;
@@ -360,6 +360,8 @@ declare namespace Knex {
     //
 
     type QueryCallback = (this: QueryBuilder, builder: QueryBuilder) => void;
+    type QueryCallbackWithArgs = (this: QueryBuilder, builder: QueryBuilder, ...args: any[]) => void;
+
     interface QueryBuilder extends QueryInterface, ChainableInterface {
         or: QueryBuilder;
         and: QueryBuilder;
diff --git a/types/knex/knex-tests.ts b/types/knex/knex-tests.ts
index 9167ad3f77..ebd392aea3 100644
--- a/types/knex/knex-tests.ts
+++ b/types/knex/knex-tests.ts
@@ -1045,10 +1045,10 @@ knex('users')
   }).unionAll(function(builder) {
     let self: Knex.QueryBuilder = this;
     self = builder;
-  }).modify(function(builder) {
+  }).modify(function(builder, aBool) {
     let self: Knex.QueryBuilder = this;
     self = builder;
-  });
+  }, true);
 
 //
 // Migrations