diff --git a/tools/push3-evolution/revm-evaluator/batch-eval.sh b/tools/push3-evolution/revm-evaluator/batch-eval.sh
index 030eb18..e5210e9 100755
--- a/tools/push3-evolution/revm-evaluator/batch-eval.sh
+++ b/tools/push3-evolution/revm-evaluator/batch-eval.sh
@@ -16,7 +16,7 @@
 #
 # Output (stdout):
 #   One JSON object per candidate:
-#     {"candidate_id":"gen0_c000","fitness":123456789,"gas_used":15432}
+#     {"candidate_id":"candidate_000","fitness":123456789,"gas_used":15432}
 #   Over-gas-limit candidates emit fitness:0 with "error":"gas_over_limit".
 #   Downstream parsers use the "fitness" key; extra fields are ignored.
 #