diff --git a/serf_private.h b/serf_private.h
index 16d800f..d38680b 100644
--- a/serf_private.h
+++ b/serf_private.h
@@ -46,7 +46,7 @@
 #define SOCK_VERBOSE 0
 #define SOCK_MSG_VERBOSE 0 /* logs bytes received from or written to a socket. */
 #define CONN_VERBOSE 0
-#define AUTH_VERBOSE 1
+#define AUTH_VERBOSE 0
 
 /* Older versions of APR do not have the APR_VERSION_AT_LEAST macro. Those
    implementations are safe.