diff --git a/Makefile b/Makefile
index 7d472df..f992a33 100644
--- a/Makefile
+++ b/Makefile
@@ -64,7 +64,7 @@ test: clean kernel disk.img
 run:kernel disk.img
 	qemu-system-x86_64 -kernel $< $(QEMU_OPT)
 
-debug: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
+debug: CFLAGS += $(DEBUG_FLAGS)
 debug: CXXFLAGS += $(DEBUG_FLAGS)
 debug:kernel kernel.sym disk.img
 	gdb -q -x debug.gdb