diff --git a/compiler/optimizing/instruction_builder.cc b/compiler/optimizing/instruction_builder.cc
index f909a99..e7f0872 100644
--- a/compiler/optimizing/instruction_builder.cc
+++ b/compiler/optimizing/instruction_builder.cc
@@ -39,7 +39,7 @@
 #include "ssa_builder.h"
 #include "well_known_classes.h"
 
-namespace art HIDDEN {
+namespace art {
 
 HInstructionBuilder::HInstructionBuilder(HGraph* graph,
                                          HBasicBlockBuilder* block_builder,