diff --git a/bgpd/bgp_damp.c b/bgpd/bgp_damp.c
index ba25f4d..346ba52 100644
--- a/bgpd/bgp_damp.c
+++ b/bgpd/bgp_damp.c
@@ -36,7 +36,7 @@
 
 /* Global variable to access damping configuration */
 struct bgp_damp_config bgp_damp_cfg;
-struct bgp_damp_config *damp = &bgp_damp_cfg;
+static struct bgp_damp_config *damp = &bgp_damp_cfg;
 
 /* Utility macro to add and delete BGP dampening information to no
    used list.  */
@@ -543,7 +543,7 @@
 
 #define BGP_UPTIME_LEN 25
 
-char *
+static const char *
 bgp_get_reuse_time (unsigned int penalty, char *buf, size_t len)
 {
   time_t reuse_time = 0;
@@ -615,7 +615,7 @@
   vty_out (vty, "%s", VTY_NEWLINE);
 }
 
-char *
+const char *
 bgp_damp_reuse_time_vty (struct vty *vty, struct bgp_info *binfo)
 {
   struct bgp_damp_info *bdi;
diff --git a/bgpd/bgp_damp.h b/bgpd/bgp_damp.h
index 17c31cb..e0bef4a 100644
--- a/bgpd/bgp_damp.h
+++ b/bgpd/bgp_damp.h
@@ -138,10 +138,9 @@
 extern int bgp_damp_scan (struct bgp_info *, afi_t, safi_t);
 extern void bgp_damp_info_free (struct bgp_damp_info *, int);
 extern void bgp_damp_info_clean (void);
-extern char * bgp_get_reuse_time (unsigned int, char*, size_t);
 extern int bgp_damp_decay (time_t, int);
 extern void bgp_config_write_damp (struct vty *);
 extern void bgp_damp_info_vty (struct vty *, struct bgp_info *);
-extern char * bgp_damp_reuse_time_vty (struct vty *, struct bgp_info *);
+extern const char * bgp_damp_reuse_time_vty (struct vty *, struct bgp_info *);
 
 #endif /* _QUAGGA_BGP_DAMP_H */