1 files changed, 4 insertions, 4 deletions
diff --git a/third_party/nix/src/nix/cat.cc b/third_party/nix/src/nix/cat.cc
index 9ead9a6ff69d..7788707eae56 100644
--- a/third_party/nix/src/nix/cat.cc
+++ b/third_party/nix/src/nix/cat.cc
@@ -3,8 +3,7 @@
 #include "libstore/store-api.hh"
 #include "nix/command.hh"
 
-using namespace nix;
-
+namespace nix {
 struct MixCat : virtual Args {
   std::string path;
 
@@ -51,6 +50,7 @@ struct CmdCatNar final : StoreCommand, MixCat {
     cat(makeNarAccessor(make_ref<std::string>(readFile(narPath))));
   }
 };
+}  // namespace nix
 
-static RegisterCommand r1(make_ref<CmdCatStore>());
-static RegisterCommand r2(make_ref<CmdCatNar>());
+static nix::RegisterCommand r1(nix::make_ref<nix::CmdCatStore>());
+static nix::RegisterCommand r2(nix::make_ref<nix::CmdCatNar>());