diff --git a/workflow/Snakefile b/workflow/Snakefile
index dd63589..5a57486 100644
--- a/workflow/Snakefile
+++ b/workflow/Snakefile
@@ -28,11 +28,19 @@ if "variant-calls" in config:
             # of the checkpoint output
             expand(
                 "results/variants/{benchmark}.truth.cov-{cov}.stats.json",
-                benchmark=[benchmark for benchmark in used_benchmarks if benchmarks[benchmark].get("high-coverage")],
+                benchmark=[
+                    benchmark
+                    for benchmark in used_benchmarks
+                    if benchmarks[benchmark].get("high-coverage")
+                ],
                 cov=high_coverages,
             ),
             expand(
                 "results/variants/{benchmark}.truth.cov-{cov}.stats.json",
-                benchmark=[benchmark for benchmark in used_benchmarks if not benchmarks[benchmark].get("high-coverage")],
+                benchmark=[
+                    benchmark
+                    for benchmark in used_benchmarks
+                    if not benchmarks[benchmark].get("high-coverage")
+                ],
                 cov=low_coverages,
             ),