diff --git a/openbsc/src/libmsc/auth.c b/openbsc/src/libmsc/auth.c
index bf62d3c..19def1e 100644
--- a/openbsc/src/libmsc/auth.c
+++ b/openbsc/src/libmsc/auth.c
@@ -92,7 +92,8 @@
 	rc = db_get_authinfo_for_subscr(&ainfo, subscr);
 	if (rc < 0) {
 		LOGP(DMM, LOGL_NOTICE,
-			"No retrievable Ki for subscriber, skipping auth\n");
+		     "No retrievable Ki for subscriber %s, skipping auth\n",
+		     subscr_name(subscr));
 		return rc == -ENOENT ? AUTH_NOT_AVAIL : AUTH_ERROR;
 	}