diff --git a/httpclient-win/src/test/java/org/apache/hc/client5/http/impl/win/TestWindowsNegotiateScheme.java b/httpclient-win/src/test/java/org/apache/hc/client5/http/impl/win/TestWindowsNegotiateScheme.java
index 5e1a45d136..e59ae401ba 100644
--- a/httpclient-win/src/test/java/org/apache/hc/client5/http/impl/win/TestWindowsNegotiateScheme.java
+++ b/httpclient-win/src/test/java/org/apache/hc/client5/http/impl/win/TestWindowsNegotiateScheme.java
@@ -98,6 +98,7 @@ public void testNoInfiniteLoopOnSPNOutsideDomain() throws Exception {
 
         final Registry<AuthSchemeProvider> authSchemeRegistry = RegistryBuilder.<AuthSchemeProvider>create()
             .register(AuthSchemes.SPNEGO, new AuthSchemeProvider() {
+                @Override
                 public AuthScheme create(final HttpContext context) {
                     return new WindowsNegotiateSchemeGetTokenFail(AuthSchemes.SPNEGO, "HTTP/example.com");
                 }