diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index e864ae1..cda5c1a 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -2478,7 +2478,7 @@
   LocationSummary* locations = not_->GetLocations();
   Location out = locations->Out();
   Location in = locations->InAt(0);
-  switch (not_->InputAt(0)->GetType()) {
+  switch (not_->GetResultType()) {
     case Primitive::kPrimInt:
       __ mvn(out.AsRegister<Register>(), ShifterOperand(in.AsRegister<Register>()));
       break;