diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 1aa7b54..3d12aed 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -316,7 +316,7 @@
                                  instruction_->GetDexPc(),
                                  this);
       CheckEntrypointTypes<
-          kQuickInstanceofNonTrivial, uint32_t, const mirror::Class*, const mirror::Class*>();
+          kQuickInstanceofNonTrivial, size_t, const mirror::Class*, const mirror::Class*>();
       arm_codegen->Move32(locations->Out(), Location::RegisterLocation(R0));
     } else {
       DCHECK(instruction_->IsCheckCast());