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-rw-r--r--src/bin/tcpident.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/bin/tcpident.c b/src/bin/tcpident.c
index 1af3bc1..eb15074 100644
--- a/src/bin/tcpident.c
+++ b/src/bin/tcpident.c
@@ -3,6 +3,7 @@
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
+#include <stdlib.h>
#include <netinet/in.h>
#include <netinet/ip_var.h>