diff -r c3a0f1275d71 -r 51d9a15eac98 src/server/config/keyfile.c
--- a/src/server/config/keyfile.c	Wed Feb 10 12:19:56 2016 +0100
+++ b/src/server/config/keyfile.c	Sat Oct 22 11:27:39 2016 +0200
@@ -106,7 +106,10 @@
         entry->hashtype = KEYFILE_SSHA;
     } else {
         // unkown hash type
-        fprintf(stderr, "unknown hash type: %s\n", sstrdup_a(mp, hash_type).ptr);
+        log_ereport(
+                LOG_FAILURE,
+                "keyfile_parse: unknown hash type: %s",
+                sstrdup_a(mp, hash_type).ptr);
         return 1;
     }