diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 9e066b7..797fe32 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -37,7 +37,7 @@
 #include "utils/x86/assembler_x86.h"
 #include "utils/x86/managed_register_x86.h"
 
-namespace art HIDDEN {
+namespace art {
 
 template<class MirrorType>
 class GcRoot;