diff --git a/headers/posix/syslog.h b/headers/posix/syslog.h
index ce39bf039b..63054cf664 100644
--- a/headers/posix/syslog.h
+++ b/headers/posix/syslog.h
@@ -5,6 +5,8 @@
 #define _SYSLOG_H_
 
 
+/**options for openlog() **/
+
 #define LOG_PID			(1 << 12)	/* log the process (thread/team) ID with each message */
 #define LOG_CONS		(2 << 12)	/* log to the system console on error */
 #define LOG_ODELAY		(4 << 12)	/* delay open until syslog() is called */
@@ -13,6 +15,9 @@
 #define LOG_PERROR		(32 << 12)
 #define LOG_NOWAIT		(64 << 12)	/* do not wait for child processes */
 
+
+/** facilities **/
+
 #define LOG_KERN		(0 << 3)	/* messages generated by the kernel */
 #define LOG_USER		(1 << 3)	/* by user processes */
 #define LOG_MAIL		(2 << 3)
@@ -23,8 +28,9 @@
 #define LOG_NEWS		(7 << 3)
 #define LOG_UUCP		(8 << 3)
 #define LOG_CRON		(9 << 3)
-#define LOG_AUTHPRIV	(4 << 3)
+#define LOG_AUTHPRIV	(10 << 3)
 
+/* these are for local use: */
 #define LOG_LOCAL0		(16 << 3)
 #define LOG_LOCAL1		(17 << 3)
 #define LOG_LOCAL2		(18 << 3)
@@ -34,8 +40,8 @@
 #define LOG_LOCAL6		(22 << 3)
 #define LOG_LOCAL7		(23 << 3)
 
-/* turns a priority into a mask usable for setlogmask() */
-#define LOG_MASK(pri)	(1 << (pri))
+
+/** priorities **/
 
 #define LOG_EMERG		0	/* a panic condition */
 #define LOG_PANIC		LOG_EMERG
@@ -47,6 +53,9 @@
 #define LOG_INFO		6
 #define LOG_DEBUG		7
 
+/* turns a priority into a mask usable for setlogmask() */
+#define LOG_MASK(pri)	(1 << (pri))
+
 
 #ifdef __cplusplus
 extern "C" {