Replace src/libutil/json.cc with nlohmann json generation

1 files changed, 3 insertions, 4 deletions

diff --git a/src/nix/eval.cc b/src/nix/eval.cc
index ddd2790c6..ba82b5772 100644
--- a/src/nix/eval.cc
+++ b/src/nix/eval.cc
@@ -4,10 +4,11 @@
 #include "store-api.hh"
 #include "eval.hh"
 #include "eval-inline.hh"
-#include "json.hh"
 #include "value-to-json.hh"
 #include "progress-bar.hh"
 
+#include <nlohmann/json.hpp>
+
 using namespace nix;
 
 struct CmdEval : MixJSON, InstallableCommand
@@ -115,9 +116,7 @@ struct CmdEval : MixJSON, InstallableCommand
         }
 
         else if (json) {
-            JSONPlaceholder jsonOut(std::cout);
-            printValueAsJSON(*state, true, *v, pos, jsonOut, context, false);
-            std::cout << std::endl;
+            std::cout << printValueAsJSON(*state, true, *v, pos, context, false).dump() << std::endl;
         }
 
         else {