diff --git a/Kernel/Devices/BlockDevice.h b/Kernel/Devices/BlockDevice.h
index d689841219..c338c5a9cc 100644
--- a/Kernel/Devices/BlockDevice.h
+++ b/Kernel/Devices/BlockDevice.h
@@ -12,7 +12,7 @@ namespace Kernel {
 
 class BlockDevice;
 
-class AsyncBlockDeviceRequest : public AsyncDeviceRequest {
+class AsyncBlockDeviceRequest final : public AsyncDeviceRequest {
 public:
     enum RequestType {
         Read,
diff --git a/Kernel/VM/AnonymousVMObject.h b/Kernel/VM/AnonymousVMObject.h
index 328a8b7405..a2c990fa59 100644
--- a/Kernel/VM/AnonymousVMObject.h
+++ b/Kernel/VM/AnonymousVMObject.h
@@ -14,7 +14,7 @@
 
 namespace Kernel {
 
-class AnonymousVMObject : public VMObject {
+class AnonymousVMObject final : public VMObject {
     friend class PurgeablePageRanges;
 
 public: