diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 04e03c7f1e..4aed9fa943 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -10356,8 +10356,9 @@ static int _sip_show_peers(int fd, int *total, struct mansession *s, const struc
 	regex_t regexbuf;
 	int havepattern = FALSE;
 
-#define FORMAT2 "%-25.25s  %-15.15s %-3.3s %-3.3s %-3.3s %-8s %-10s %-10s\n"
-#define FORMAT  "%-25.25s  %-15.15s %-3.3s %-3.3s %-3.3s %-8d %-10s %-10s\n"
+/* the last argument is left-aligned, so we don't need a size anyways */
+#define FORMAT2 "%-25.25s  %-15.15s %-3.3s %-3.3s %-3.3s %-8s %-10s %s\n"
+#define FORMAT  "%-25.25s  %-15.15s %-3.3s %-3.3s %-3.3s %-8d %-10s %s\n"
 
 	char name[256];
 	int total_peers = 0;