diff --git a/benchmarks/input/create_hex_data_file.sh b/benchmarks/input/create_hex_data_file.sh
index a213d65..d7beb46 100755
--- a/benchmarks/input/create_hex_data_file.sh
+++ b/benchmarks/input/create_hex_data_file.sh
@@ -13,12 +13,13 @@
 inputfile="$1"
 outputfile="$2"
 
+# 1. gzip output file
+# 2. convert to hex
+# 3. drop last line of output
+# 4. print all but first parameter (offset) in C++ formatting
+
 cat "$inputfile" | \
 gzip -9 | \
 od -v -t x1 | \
-sed \
-'s/^[0-9A-Fa-f]\{1,\} *//
-/^ *$/d
-s/ \{1,\}/,0x/g
-s/^/0x/
-s/$/,/' > "$outputfile"
+awk 'NR>1{print buf}{buf = $0}' | \
+awk '{for (i=2; i<=NF; i++) print "0x"$i","}' > "$outputfile"