diff --git a/include/dawn/wire/WireClient.h b/include/dawn/wire/WireClient.h
index 26e1f1deab..c1adfb1337 100644
--- a/include/dawn/wire/WireClient.h
+++ b/include/dawn/wire/WireClient.h
@@ -68,7 +68,7 @@ class DAWN_WIRE_EXPORT WireClient : public CommandHandler {
     explicit WireClient(const WireClientDescriptor& descriptor);
     ~WireClient() override;
 
-    const volatile char* HandleCommands(const volatile char* commands, size_t size) final;
+    const volatile char* HandleCommands(const volatile char* commands, size_t size) override;
 
     ReservedTexture ReserveTexture(WGPUDevice device);
     ReservedSwapChain ReserveSwapChain(WGPUDevice device);
diff --git a/include/dawn/wire/WireServer.h b/include/dawn/wire/WireServer.h
index 03d694e5a3..9fc2ab3973 100644
--- a/include/dawn/wire/WireServer.h
+++ b/include/dawn/wire/WireServer.h
@@ -39,7 +39,7 @@ class DAWN_WIRE_EXPORT WireServer : public CommandHandler {
     explicit WireServer(const WireServerDescriptor& descriptor);
     ~WireServer() override;
 
-    const volatile char* HandleCommands(const volatile char* commands, size_t size) final;
+    const volatile char* HandleCommands(const volatile char* commands, size_t size) override;
 
     bool InjectTexture(WGPUTexture texture,
                        uint32_t id,