diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index d7069ca..376e740 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -1776,7 +1776,7 @@
   Primitive::Type GetResultType() const { return GetType(); }
 
   bool CanBeMoved() const OVERRIDE { return true; }
-  bool InstructionDataEquals(HInstruction* /* other */) const OVERRIDE { return true; }
+  bool InstructionDataEquals(HInstruction* other ATTRIBUTE_UNUSED) const OVERRIDE { return true; }
 
   DECLARE_INSTRUCTION(TypeConversion);