diff --git a/.changeset/nine-knives-lie.md b/.changeset/nine-knives-lie.md
new file mode 100644
index 000000000..45a6c74f7
--- /dev/null
+++ b/.changeset/nine-knives-lie.md
@@ -0,0 +1,5 @@
+---
+'apollo-angular': patch
+---
+
+Relax type to be able to use `extract-files` properly
diff --git a/packages/apollo-angular/http/src/types.ts b/packages/apollo-angular/http/src/types.ts
index 3d4ca4b8b..58ddf3612 100644
--- a/packages/apollo-angular/http/src/types.ts
+++ b/packages/apollo-angular/http/src/types.ts
@@ -41,11 +41,13 @@ export type Request = {
   options: HttpRequestOptions;
 };
 
-export type ExtractFiles = (body: Body | Body[]) => {
-  clone: Body;
+export type ExtractedFiles = {
+  clone: unknown;
   files: Map<any, any>;
 };
 
+export type ExtractFiles = (body: Body | Body[]) => ExtractedFiles;
+
 export type BatchOptions = {
   batchMax?: number;
   batchInterval?: number;
diff --git a/packages/apollo-angular/http/src/utils.ts b/packages/apollo-angular/http/src/utils.ts
index de20520df..be56e1752 100644
--- a/packages/apollo-angular/http/src/utils.ts
+++ b/packages/apollo-angular/http/src/utils.ts
@@ -1,6 +1,6 @@
 import { Observable } from 'rxjs';
 import { HttpClient, HttpHeaders, HttpResponse } from '@angular/common/http';
-import { Body, ExtractFiles, Request } from './types';
+import {Body, ExtractedFiles, ExtractFiles, Request} from './types';
 
 export const fetch = (
   req: Request,
@@ -12,10 +12,7 @@ export const fetch = (
     ['variables', 'extensions'].indexOf(param.toLowerCase()) !== -1;
   const isBatching = (req.body as Body[]).length;
   let shouldUseMultipart = req.options && req.options.useMultipart;
-  let multipartInfo: {
-    clone: Body;
-    files: Map<any, any>;
-  };
+  let multipartInfo: ExtractedFiles;
 
   if (shouldUseMultipart) {
     if (isBatching) {