diff --git a/compiler/optimizing/live_ranges_test.cc b/compiler/optimizing/live_ranges_test.cc
index bb8a4dc..4f52fdb 100644
--- a/compiler/optimizing/live_ranges_test.cc
+++ b/compiler/optimizing/live_ranges_test.cc
@@ -15,6 +15,7 @@
  */
 
 #include "base/arena_allocator.h"
+#include "base/macros.h"
 #include "builder.h"
 #include "code_generator.h"
 #include "dex/dex_file.h"
@@ -25,7 +26,7 @@
 #include "prepare_for_register_allocation.h"
 #include "ssa_liveness_analysis.h"
 
-namespace art {
+namespace art HIDDEN {
 
 class LiveRangesTest : public OptimizingUnitTest {
  protected: