diff --git a/2021/benchmark b/2021/benchmark
index 5067492..5bbf638 100755
--- a/2021/benchmark
+++ b/2021/benchmark
@@ -1,7 +1,7 @@
 #!/bin/sh
-day="$(printf '%02d' "${1##0}")"
+day="$1"
 part="$2"
-inputfile="$PWD/../inputs/$day.txt"
+inputfile="$PWD/../inputs/$(printf '%02d' "${day##0}").txt"
 
 [ -x "prepare" ] || exit 0
 
diff --git a/2021/complete-benchmark b/2021/complete-benchmark
index cda4e58..f558572 100755
--- a/2021/complete-benchmark
+++ b/2021/complete-benchmark
@@ -2,9 +2,7 @@
 day="$1"
 part="$2"
 
-day="$(printf '%02d' "$day")"
-
-inputfile="$PWD/inputs/${day}.txt"
+inputfile="$PWD/inputs/$(printf '%02d' "${day##0}").txt"
 
 if ! test -f "$inputfile"; then
 	echo "no input available" >&2