diff --git a/Makefile b/Makefile
index 7a37fd6b48..29afeb9505 100644
--- a/Makefile
+++ b/Makefile
@@ -134,7 +134,7 @@ clean-local:
 check-merges-reproducibility:
 	@echo "Running replay_merge for each idx in parallel..."
 	@tail -n +2 $(CSV_RESULTS) | awk -F, '{print $$1}' | while read idx; do \
-		python3 src/python/replay_merge.py --merges_csv $$(CSV_RESULTS) --delete_workdir --idx $$idx; \
+		python3 src/python/replay_merge.py --merges_csv $(CSV_RESULTS) -delete_workdir --idx $$idx; \
 	done
 protect-repos:
 	find repos -mindepth 1 -type d -exec chmod a-w {} +