* When creating a new generation, also make the normal form of the

  derivation (i.e., the closure store expression) a root of the
  garbage collector.  This ensures that running `nix-collect-garbage
  --no-successors' is safe.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nix-env/main.cc b/src/nix-env/main.cc
index 673d1b2be5f6..07a49a122c97 100644
--- a/src/nix-env/main.cc
+++ b/src/nix-env/main.cc
@@ -196,7 +196,7 @@ void createUserEnv(EvalState & state, const DrvInfos & drvs,
     /* Switch the current user environment to the output path. */
     debug(format("switching to new user environment"));
     Path generation = createGeneration(profile,
-        topLevelDrv.outPath, topLevelDrv.drvPath);
+        topLevelDrv.outPath, topLevelDrv.drvPath, nfPath);
     switchLink(profile, generation);
 }