diff -p -up thinkfinger-0.3/pam/pam_thinkfinger.c~ thinkfinger-0.3/pam/pam_thinkfinger.c
--- thinkfinger-0.3/pam/pam_thinkfinger.c~	2007-03-29 17:00:45.000000000 +0200
+++ thinkfinger-0.3/pam/pam_thinkfinger.c	2009-09-14 13:03:36.000000000 +0200
@@ -66,7 +66,7 @@ static void pam_thinkfinger_log (const p
 		va_start (ap, format);
 		vsnprintf (message, sizeof(message), format, ap);
 		va_end(ap);
-		pam_syslog (pam_thinkfinger->pamh, type, message);
+		pam_syslog (pam_thinkfinger->pamh, type, "%s", message);
 	}
 }