diff --git a/Makefile b/Makefile
index 862e37d..1ebe675 100644
--- a/Makefile
+++ b/Makefile
@@ -88,11 +88,16 @@ test: clean kernel disk.img
 run:kernel disk.img          ## Run the OS on qemu
 	qemu-system-x86_64 -kernel $< -serial stdio $(QEMU_OPT)
 
-debug: CFLAGS += $(DEBUG_FLAGS) ## Run the OS on qemu and attach a debugger to it (may need a clean befor to have the debug symbols)
+debug: CFLAGS += $(DEBUG_FLAGS) ## Run the OS on qemu and attach a debugger to it (may need a clean before to have the debug symbols)
 debug: CXXFLAGS += $(DEBUG_FLAGS)
 debug:kernel kernel.debug disk.img
 	gdb -q -x debug.gdb
 
+isodebug: CFLAGS += $(DEBUG_FLAGS) ## Same than previous but kernel is loaded by grub. So, for example, we can access the elf debug info
+isodebug: CXXFLAGS += $(DEBUG_FLAGS)
+isodebug:fd.iso disk.img
+	gdb -q -x debug.iso.gdb
+
 debug_test: CFLAGS += $(DEBUG_FLAGS) -DRUN_TEST
 debug_test: debug