1 files changed, 1 insertions, 0 deletions
diff --git a/src/nix/main.cc b/src/nix/main.cc
index 4b909736d..01b0866f2 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -97,6 +97,7 @@ void mainWrapped(int argc, char * * argv)
 
     verbosity = lvlError;
     settings.verboseBuild = false;
+    evalSettings.pureEval = true;
 
     NixArgs args;