diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index 0a74705..ff1207a 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -79,7 +79,7 @@
   explicit CodeVectorAllocator(ArenaAllocator* allocator)
       : memory_(allocator->Adapter(kArenaAllocCodeBuffer)) {}
 
-  virtual uint8_t* Allocate(size_t size) {
+  uint8_t* Allocate(size_t size) override {
     memory_.resize(size);
     return &memory_[0];
   }