1 files changed, 2 insertions, 1 deletions
diff --git a/third_party/nix/src/nix/command.hh b/third_party/nix/src/nix/command.hh
index f7eaeb721620..01c1ed69d61d 100644
--- a/third_party/nix/src/nix/command.hh
+++ b/third_party/nix/src/nix/command.hh
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <memory>
+
 #include "libexpr/common-eval-args.hh"
 #include "libutil/args.hh"
 
@@ -81,7 +82,7 @@ struct SourceExprCommand : virtual Args, StoreCommand, MixEvalArgs {
 
  private:
   std::shared_ptr<EvalState> evalState;
-  std::shared_ptr<Value> vSourceExpr;
+  std::shared_ptr<Value*> vSourceExpr;
 };
 
 enum RealiseMode { Build, NoBuild, DryRun };