diff --git a/usr.bin/procstat/procstat_files.c b/usr.bin/procstat/procstat_files.c
index 7a55659abcb5..700f6438fe4b 100644
--- a/usr.bin/procstat/procstat_files.c
+++ b/usr.bin/procstat/procstat_files.c
@@ -106,8 +106,13 @@ addr_to_string(struct sockaddr_storage *ss, char *buffer, int buflen)
 
 	case AF_INET:
 		sin = (struct sockaddr_in *)ss;
-		snprintf(buffer, buflen, "%s:%d", inet_ntoa(sin->sin_addr),
-		    ntohs(sin->sin_port));
+		if (IS_INADDR_ANY(sin->sin_addr))
+		    snprintf(buffer, buflen, "%s:%d", "*",
+		        ntohs(sin->sin_port));
+		else if (inet_ntop(AF_INET, &sin->sin_addr, buffer2,
+		    sizeof(buffer2)) != NULL)
+			snprintf(buffer, buflen, "%s:%d", buffer2,
+		            ntohs(sin->sin_port));
 		break;
 
 	case AF_INET6: