diff --git a/jdk/src/java.httpclient/share/classes/java/net/http/AuthenticationFilter.java b/jdk/src/java.httpclient/share/classes/java/net/http/AuthenticationFilter.java
index 5bd425b5557..1f098f91c48 100644
--- a/jdk/src/java.httpclient/share/classes/java/net/http/AuthenticationFilter.java
+++ b/jdk/src/java.httpclient/share/classes/java/net/http/AuthenticationFilter.java
@@ -189,7 +189,7 @@ class AuthenticationFilter implements HeaderFilter {
         }
 
         boolean proxy = status == PROXY_UNAUTHORIZED;
-        String authname = proxy ? "Proxy-Authentication" : "WWW-Authenticate";
+        String authname = proxy ? "Proxy-Authenticate" : "WWW-Authenticate";
         String authval = hdrs.firstValue(authname).orElseThrow(() -> {
             return new IOException("Invalid auth header");
         });