--- a/crates/jrsonnet-stdlib/src/arrays.rs
+++ b/crates/jrsonnet-stdlib/src/arrays.rs
@@ -72,7 +72,8 @@
 	let mut out = ObjValueBuilder::new();
 	for (k, v) in obj.iter() {
 		let v = v?;
-		out.field(k).value(func.evaluate_simple(&(v,), false)?);
+		out.field(k.clone())
+			.value(func.evaluate_simple(&(k, v), false)?);
 	}
 	Ok(out.build())
 }