diff --git a/test/types/queries.test.ts b/test/types/queries.test.ts
index 2f729f4e5c..16e85e5148 100644
--- a/test/types/queries.test.ts
+++ b/test/types/queries.test.ts
@@ -798,3 +798,17 @@ function gh15671() {
     };
   };
 }
+
+async function gh15786() {
+  interface IDoc {
+    nmae: string;
+  }
+
+  interface DocStatics {
+    m1(): void;
+    m2(): void;
+  }
+
+  const schema = new Schema<IDoc, Model<IDoc>, {}, {}, {}, DocStatics>({});
+  schema.static({ m1() {} } as DocStatics);
+}
diff --git a/types/index.d.ts b/types/index.d.ts
index 8e8b5ad67f..30fb89a9ab 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -542,6 +542,7 @@ declare module 'mongoose' {
 
     /** Adds static "class" methods to Models compiled from this schema. */
     static<K extends keyof TStaticMethods>(name: K, fn: TStaticMethods[K]): this;
+    static(obj: { [F in keyof TStaticMethods]: TStaticMethods[F] }): this;
     static(obj: { [F in keyof TStaticMethods]: TStaticMethods[F] } & { [name: string]: (this: TModelType, ...args: any[]) => any }): this;
     static(name: string, fn: (this: TModelType, ...args: any[]) => any): this;