diff --git a/Makefile b/Makefile
index 32ed549..f88cb2c 100644
--- a/Makefile
+++ b/Makefile
@@ -33,6 +33,7 @@ KERNEL_OBJS := \
 	$(BUILD)/kernel/string.o \
 	$(BUILD)/drivers/display.o \
 	$(BUILD)/drivers/keyboard.o \
+	$(BUILD)/drivers/serial.o \
 	$(BUILD)/drivers/timer.o \
 	$(BUILD)/drivers/storage.o