diff --git a/src/tint/ir/instruction.h b/src/tint/ir/instruction.h
index 461b1f7..0cb5f82 100644
--- a/src/tint/ir/instruction.h
+++ b/src/tint/ir/instruction.h
@@ -68,7 +68,7 @@
     /// @param instr the instruction to move from
     Instruction(Instruction&& instr);
     /// Destructor
-    ~Instruction();
+    ~Instruction() override;
 
     /// Copy assign
     /// @param instr the instruction to copy from
diff --git a/src/tint/ir/value.h b/src/tint/ir/value.h
index 326931f..69ef8dd 100644
--- a/src/tint/ir/value.h
+++ b/src/tint/ir/value.h
@@ -25,7 +25,7 @@
 class Value : public Castable<Value> {
   public:
     /// Destructor
-    virtual ~Value();
+    ~Value() override;
 
     Value(const Value&) = delete;
     Value(Value&&) = delete;