diff --git a/src/nix-instantiate/nix-instantiate.cc b/src/nix-instantiate/nix-instantiate.cc
index 6181d2190..80f35828c 100644
--- a/src/nix-instantiate/nix-instantiate.cc
+++ b/src/nix-instantiate/nix-instantiate.cc
@@ -52,9 +52,10 @@ void processExpr(EvalState & state, const Strings & attrPaths,
                 state.autoCallFunction(autoArgs, v, vRes);
             if (output == okXML)
                 printValueAsXML(state, strict, location, vRes, std::cout, context, noPos);
-            else if (output == okJSON)
+            else if (output == okJSON) {
                 printValueAsJSON(state, strict, vRes, v.determinePos(noPos), std::cout, context, false);
-            else {
+                std::cout << std::endl;
+            } else {
                 if (strict) state.forceValueDeep(vRes);
                 vRes.print(state.symbols, std::cout);
                 std::cout << std::endl;
diff --git a/src/nix/eval.cc b/src/nix/eval.cc
index cc022ae43..ddd2790c6 100644
--- a/src/nix/eval.cc
+++ b/src/nix/eval.cc
@@ -117,6 +117,7 @@ struct CmdEval : MixJSON, InstallableCommand
         else if (json) {
             JSONPlaceholder jsonOut(std::cout);
             printValueAsJSON(*state, true, *v, pos, jsonOut, context, false);
+            std::cout << std::endl;
         }
 
         else {