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-rw-r--r--tvix/eval/src/lib.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/tvix/eval/src/lib.rs b/tvix/eval/src/lib.rs
index 9c298df60a8f..8ce37de42732 100644
--- a/tvix/eval/src/lib.rs
+++ b/tvix/eval/src/lib.rs
@@ -171,6 +171,12 @@ impl<'co, 'ro> Evaluation<'co, 'ro, Box<dyn EvalIO>> {
         self.io_handle = io.unwrap_or_else(|| Box::new(StdIO) as Box<dyn EvalIO>);
         self.enable_import = true;
         self.builtins.extend(builtins::impure_builtins());
+
+        // Make `NIX_PATH` resolutions work by default, unless the
+        // user already overrode this with something else.
+        if self.nix_path.is_none() {
+            self.nix_path = std::env::var("NIX_PATH").ok();
+        }
     }
 
     #[cfg(feature = "impure")]