diff -ur a/Makefile b/Makefile
--- a/Makefile	2016-08-30 16:01:23.000000000 +0300
+++ b/Makefile	2019-09-21 17:02:49.398265589 +0300
@@ -7,7 +7,7 @@
 # <dragorn> i think thats all anyone does
 # <dragorn> make is a twisted beast
 ##################################
-LDLIBS		= -lpcap -lcrypt
+LDLIBS		= -lpcap -lxcrypt
 CFLAGS		= -pipe -Wall -D_LINUX -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -I../../..
 CFLAGS		+= -D_OPENSSL_MD4
 LDLIBS		+= -lcrypto
diff -ur a/utils.c b/utils.c
--- a/utils.c	2016-08-30 16:01:23.000000000 +0300
+++ b/utils.c	2019-09-21 16:49:08.191685747 +0300
@@ -27,7 +27,7 @@
 #include <stdarg.h>
 #include <string.h>
 #include <stdint.h>
-#include <crypt.h>
+#include <xcrypt.h>
 #include <unistd.h>
 #include <ctype.h>
 #include <netinet/in.h>		/* for ntohs() */