diff --git a/map/skk2ktrans b/map/skk2ktrans
index 4908d65..a00157e 100755
--- a/map/skk2ktrans
+++ b/map/skk2ktrans
@@ -1,8 +1,22 @@
-#!/usr/bin/env bash
+#!/bin/bash
 
 set -euo pipefail
 
-iconv -f EUC-JP -t UTF-8 "$@" | awk '
+transcode()
+{
+	local file
+
+	if (( $# == 0 )); then
+		iconv -f EUC-JP -t UTF-8
+		return
+	fi
+	for file in "$@"; do
+		iconv -f EUC-JP -t UTF-8 "$file"
+		printf '\n'
+	done
+}
+
+transcode "$@" | awk '
 function fail(s) {
 	print "skk2ktrans: " FILENAME ":" FNR ": " s >"/dev/stderr"
 	bad = 1
diff --git a/tests/skk2ktrans_test.py b/tests/skk2ktrans_test.py
index 90abc72..100cc04 100755
--- a/tests/skk2ktrans_test.py
+++ b/tests/skk2ktrans_test.py
@@ -43,6 +43,16 @@ class Skk2KtransTest(unittest.TestCase):
 		self.assertNotEqual(result.returncode, 0)
 		self.assertIn(b"expression candidates are unsupported", result.stderr)
 
+	def test_files_have_distinct_row_boundaries(self):
+		with tempfile.TemporaryDirectory() as directory:
+			first = Path(directory) / "first.skk"
+			second = Path(directory) / "second.skk"
+			first.write_bytes(b"a /A/")
+			second.write_bytes(b"b /B/\n")
+			result = subprocess.run(
+				[CONVERTER, first, second], capture_output=True, check=False)
+		self.assertEqual(result.returncode, 0, result.stderr.decode())
+		self.assertEqual(result.stdout, b"a\tA\nb\tB\n")
 
 if __name__ == "__main__":
 	unittest.main()