-$(ALGO_NAME)_OBJ := cast5.o
-$(ALGO_NAME)_TEST_BIN := main-cast5-test.o bcal_cast5.o $(CLI_STD) $(BCAL_STD)
+$(ALGO_NAME)_INCDIR := bcal/
+$(ALGO_NAME)_OBJ := cast5.o cast5-sbox.o
+$(ALGO_NAME)_TESTBIN := main-cast5-test.o bcal_cast5.o $(CLI_STD) $(BCAL_STD)