diff --git a/tests/data/test551 b/tests/data/test551
index df31453d95..22ad955599 100644
--- a/tests/data/test551
+++ b/tests/data/test551
@@ -6,7 +6,7 @@
 HTTP
 HTTP POST
 POST callback
-HTTP proxy Digst auth
+HTTP proxy Digest auth
 </keywords>
 </info>
 # Server-side