1 files changed, 6 insertions, 6 deletions

diff --git a/src/nix/main.cc b/src/nix/main.cc
index d3d2f5b16..53bf649d4 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -292,7 +292,7 @@ void mainWrapped(int argc, char * * argv)
     NixArgs args;
 
     if (argc == 2 && std::string(argv[1]) == "__dump-args") {
-        std::cout << args.toJSON().dump() << "\n";
+        logger->cout("%s", args.toJSON());
         return;
     }
 
@@ -312,7 +312,7 @@ void mainWrapped(int argc, char * * argv)
             b["doc"] = trim(stripIndentation(primOp->doc));
             res[state.symbols[builtin.name]] = std::move(b);
         }
-        std::cout << res.dump() << "\n";
+        logger->cout("%s", res);
         return;
     }
 
@@ -321,14 +321,14 @@ void mainWrapped(int argc, char * * argv)
         if (completions) {
             switch (completionType) {
             case ctNormal:
-                std::cout << "normal\n"; break;
+                logger->cout("normal"); break;
             case ctFilenames:
-                std::cout << "filenames\n"; break;
+                logger->cout("filenames"); break;
             case ctAttrs:
-                std::cout << "attrs\n"; break;
+                logger->cout("attrs"); break;
             }
             for (auto & s : *completions)
-                std::cout << s.completion << "\t" << trim(s.description) << "\n";
+                logger->cout(s.completion + "\t" + trim(s.description));
         }
     });