diff --git a/drivers/random/Makefile b/drivers/random/Makefile
index 0af80f460..ec447e5f9 100644
--- a/drivers/random/Makefile
+++ b/drivers/random/Makefile
@@ -13,14 +13,15 @@ d = ..
 MAKE = exec make
 CC =	exec cc
 CFLAGS = -I$i $(CPROFILE)
-LDFLAGS = -i -L../libdriver
+LDFLAGS = -i -L../libdriver_asyn
 LIBS = -lsysutil -ldriver -lsys 
+LIB_DEPS=../libdriver_asyn/libdriver.a
 
 OBJ = main.o random.o sha2.o aes/rijndael_api.o aes/rijndael_alg.o
 
 # build local binary
 all build:	$(DRIVER)
-$(DRIVER):	$(OBJ)
+$(DRIVER):	$(OBJ) $(LIB_DEPS)
 	$(CC) -o $@ $(LDFLAGS) $(OBJ) $(LIBS)
 	install -S 8k $(DRIVER)