diff --git a/types/jws/index.d.ts b/types/jws/index.d.ts
index 030d670f4a..fdbf1851c4 100644
--- a/types/jws/index.d.ts
+++ b/types/jws/index.d.ts
@@ -149,5 +149,5 @@ export type Algorithm = 'HS256' | 'HS384' | 'HS512' | 'RS256' |
 
 export interface Header {
     alg: Algorithm;
-    [key: string]: string;
+    [name: string]: string;
 }