1 files changed, 12 insertions, 0 deletions
diff --git a/tvix/nix-compat/src/derivation/mod.rs b/tvix/nix-compat/src/derivation/mod.rs
index b416e745a565..6a1eee4a81c3 100644
--- a/tvix/nix-compat/src/derivation/mod.rs
+++ b/tvix/nix-compat/src/derivation/mod.rs
@@ -51,11 +51,23 @@ impl Derivation {
         write::write_char(writer, write::PAREN_OPEN)?;
 
         write::write_outputs(writer, &self.outputs)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_input_derivations(writer, &self.input_derivations)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_input_sources(writer, &self.input_sources)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_system(writer, &self.system)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_builder(writer, &self.builder)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_arguments(writer, &self.arguments)?;
+        write::write_char(writer, write::COMMA)?;
+
         write::write_enviroment(writer, &self.environment)?;
 
         write::write_char(writer, write::PAREN_CLOSE)?;