diff --git a/test/types/expressions.test.ts b/test/types/expressions.test.ts
index dd889576728..2ee99e2b82f 100644
--- a/test/types/expressions.test.ts
+++ b/test/types/expressions.test.ts
@@ -164,3 +164,7 @@ const toLong: Expression = { $toLong: '$qty' };
 const nullExpr: Expression = {
   $ne: null
 };
+
+const nullNETupleExpr: Expression = {
+  $ne: ['$name', null]
+};
diff --git a/types/expressions.d.ts b/types/expressions.d.ts
index 6b889e3a827..8663e1a49fb 100644
--- a/types/expressions.d.ts
+++ b/types/expressions.d.ts
@@ -1034,7 +1034,7 @@ declare module 'mongoose' {
        *
        * @see https://docs.mongodb.com/manual/reference/operator/aggregation/ne/#mongodb-expression-exp.-ne
        */
-      $ne: Expression | [Expression, Expression] | null;
+      $ne: Expression | [Expression, Expression | NullExpression] | null;
     }
 
     export interface Cond {