diff --git a/types/superagent/index.d.ts b/types/superagent/index.d.ts
index e133eb0d3a..fe63cbb2fb 100644
--- a/types/superagent/index.d.ts
+++ b/types/superagent/index.d.ts
@@ -168,7 +168,7 @@ declare namespace request {
         unset(field: string): this;
         use(fn: Plugin): this;
         withCredentials(): this;
-        write(data: string | Buffer, encoding?: string): this;
+        write(data: string | Buffer, encoding?: string): boolean;
         maxResponseSize(size: number): this;
     }
 
diff --git a/types/superagent/superagent-tests.ts b/types/superagent/superagent-tests.ts
index 25e10a62ad..378b0d72d2 100644
--- a/types/superagent/superagent-tests.ts
+++ b/types/superagent/superagent-tests.ts
@@ -305,8 +305,8 @@ request
     req.part()
         .set('Content-Type', 'image/png')
         .set('Content-Disposition', 'attachment; filename="myimage.png"')
-        .write('some image data')
-        .write('some more image data');
+        .write('some image data');
+    req.write('some more image data');
 
     req.part()
         .set('Content-Disposition', 'form-data; name="name"')