diff --git a/compiler/optimizing/graph_checker.cc b/compiler/optimizing/graph_checker.cc
index 4d74c4e..35c5269 100644
--- a/compiler/optimizing/graph_checker.cc
+++ b/compiler/optimizing/graph_checker.cc
@@ -146,7 +146,7 @@
   }
 
   // Ensure the uses of `instruction` are defined in a block of the graph.
-  for (HUseIterator<HInstruction> use_it(instruction->GetUses());
+  for (HUseIterator<HInstruction*> use_it(instruction->GetUses());
        !use_it.Done(); use_it.Advance()) {
     HInstruction* use = use_it.Current()->GetUser();
     const HInstructionList& list = use->IsPhi()
@@ -254,7 +254,7 @@
   super_type::VisitInstruction(instruction);
 
   // Ensure an instruction dominates all its uses.
-  for (HUseIterator<HInstruction> use_it(instruction->GetUses());
+  for (HUseIterator<HInstruction*> use_it(instruction->GetUses());
        !use_it.Done(); use_it.Advance()) {
     HInstruction* use = use_it.Current()->GetUser();
     if (!use->IsPhi() && !instruction->StrictlyDominates(use)) {