diff --git a/isisd/ChangeLog b/isisd/ChangeLog
index f8278c5..c34f827 100644
--- a/isisd/ChangeLog
+++ b/isisd/ChangeLog
@@ -1,3 +1,7 @@
+2005-08-16 Hasso Tepper <hasso at quagga.net>
+
+	* isis_misc.[ch]: Fix some warnings, making some strings const.
+
 2005-08-10 Hasso Tepper <hasso at quagga.net>
 
 	* topology/spgrid.c: MAXLONG is deprecated, use LONG_MAX instead.
diff --git a/isisd/isis_misc.c b/isisd/isis_misc.c
index 300f02c..a56856e 100644
--- a/isisd/isis_misc.c
+++ b/isisd/isis_misc.c
@@ -162,10 +162,10 @@
  * conversion of XXXX.XXXX.XXXX to memory
  */
 int
-sysid2buff (u_char * buff, u_char * dotted)
+sysid2buff (u_char * buff, const u_char * dotted)
 {
   int len = 0;
-  u_char *pos = dotted;
+  const u_char *pos = dotted;
   u_char number[3];
 
   number[2] = '\0';
diff --git a/isisd/isis_misc.h b/isisd/isis_misc.h
index 91bd248..3b97589 100644
--- a/isisd/isis_misc.h
+++ b/isisd/isis_misc.h
@@ -35,7 +35,7 @@
  * return value of 0 indicates wrong input
  */
 int dotformat2buff (u_char *, u_char *);
-int sysid2buff (u_char *, u_char *);
+int sysid2buff (u_char *, const u_char *);
 
 /*
  * Printing functions