error adding uthash.h while running "make"

[nandit...@gmail.com]

root@cit:/home/cit/vxlan# make
gcc -Wall -g -c fdb.c -o fdb.o
In file included from fdb.c:1:0:
fdb.h:7:20: fatal error: uthash.h: No such file or directory
#include <uthash.h>
^
compilation terminated.
make: *** [fdb.o] Error 1

please help its emergency.