diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 3049128..45d23fe 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -777,7 +777,7 @@
       location_builder_(graph, this),
       instruction_visitor_(graph, this),
       move_resolver_(graph->GetArena(), this),
-      assembler_(),
+      assembler_(graph->GetArena()),
       isa_features_(isa_features),
       uint32_literals_(std::less<uint32_t>(),
                        graph->GetArena()->Adapter(kArenaAllocCodeGenerator)),