diff --git a/Kernel/Interrupts/MSIHandler.h b/Kernel/Interrupts/MSIHandler.h
index 73c08676f6..2af13fe87e 100644
--- a/Kernel/Interrupts/MSIHandler.h
+++ b/Kernel/Interrupts/MSIHandler.h
@@ -33,7 +33,7 @@
 
 namespace Kernel {
 
-class MSIHandler : public GenericInterruptHandler {
+class MSIHandler final : public GenericInterruptHandler {
 public:
     virtual ~MSIHandler();