diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 894fb8d..41e0487 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -82,11 +82,13 @@
 constexpr int kDumpTableRowLength = 159;
 } // namespace
 
+using namespace ftl::flag_operators;
+
 using base::StringAppendF;
-using namespace android::flag_operators;
-using PresentState = frametimeline::SurfaceFrame::PresentState;
 using gui::WindowInfo;
 
+using PresentState = frametimeline::SurfaceFrame::PresentState;
+
 std::atomic<int32_t> Layer::sSequence{1};
 
 Layer::Layer(const LayerCreationArgs& args)