diff --git a/extras/kdf/Makefile b/extras/kdf/Makefile
index 188e5f3..49bfda3 100644
--- a/extras/kdf/Makefile
+++ b/extras/kdf/Makefile
@@ -1,4 +1,6 @@
 
+PREFIX ?= /usr/local
+
 all:
 	gcc -O2 -o tomb-kdb-pbkdf2 pbkdf2.c -lgcrypt
 	gcc -O2 -o tomb-kdb-pbkdf2-getiter benchmark.c -lgcrypt
@@ -6,4 +8,11 @@ all:
 	gcc -O2 -o hexencode hexencode.c
 
 clean:
-	rm -f tomb-kdb-pbkdf2-getiter tomb-kdb-pbkdf2 tomb-kdb-pbkdf2-gensalt hexencode
\ No newline at end of file
+	rm -f tomb-kdb-pbkdf2 tomb-kdb-pbkdf2-getiter tomb-kdb-pbkdf2-gensalt hexencode
+
+install:
+	install -Dm755 tomb-kdb-pbkdf2 ${DESTDIR}${PREFIX}/bin/tomb-kdb-pbkdf2
+	install -Dm755 tomb-kdb-pbkdf2-getiter ${DESTDIR}${PREFIX}/bin/tomb-kdb-pbkdf2-getiter
+	install -Dm755 tomb-kdb-pbkdf2-gensalt ${DESTDIR}${PREFIX}/bin/tomb-kdb-pbkdf2-gensalt
+	install -Dm755 hexencode ${DESTDIR}${PREFIX}/bin/hexencode
+	@echo "Tomb-kdb auxiliary binaries installed in ${PREFIX}"