diff --git a/nemu/tests/Makefile b/nemu/tests/Makefile
index a43b7cf..3cd68a6 100644
--- a/nemu/tests/Makefile
+++ b/nemu/tests/Makefile
@@ -1,9 +1,5 @@
 TEST_SRCS += tests/expr_test.c
 
-$(OBJ_DIR)/tests/%.o: tests/%.c
+$(OBJ_DIR)/%: %.c $(OBJS)
 	@echo + CC $<
-	@$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS) $(CFLGAS)
-
-$(OBJ_DIR)/tests/%: $(OBJ_DIR)/test/%.o $(OBJS)
-	@echo + LD $<
-	@$(LD) -e test_main -o $@ $^ $(LDFLAGS) $(CFLGAS)
+	@$(CC) $(CFLAGS) -Wl,-e,test_main -o $@ $^ $(LIBS) $(LDFLAGS) $(CFLGAS)