diff --git a/README.md b/README.md
index cc32b22..7115dd3 100644
--- a/README.md
+++ b/README.md
@@ -17,4 +17,4 @@ pip install greek-normalisation
 
 See `tests.rst` for usage examples.
 
-Also, two command-line utilities `toNFC` and `toNFD` are installed which can be used to do unicode normalisation on files (e.g. `toNFC source.txt > nfc_version.txt`).
+Also, three command-line utilities `to2019`, `toNFC` and `toNFD` are installed which can be used to convert U+02BC and U+1FBF to U+2019 and do unicode normalisation on files (e.g. `toNFC source.txt > nfc_version.txt`).
diff --git a/greek_normalisation/convert_files.py b/greek_normalisation/convert_files.py
index 1b0d525..49544a3 100755
--- a/greek_normalisation/convert_files.py
+++ b/greek_normalisation/convert_files.py
@@ -3,7 +3,7 @@
 import fileinput
 import sys
 
-from .utils import nfc, nfd
+from .utils import nfc, nfd, convert_to_2019
 
 
 def convert(func):
@@ -25,3 +25,7 @@ def to_nfc():
 
 def to_nfd():
     convert(nfd)
+
+
+def to_2019():
+    convert(convert_to_2019)
diff --git a/greek_normalisation/to2019.py b/greek_normalisation/to2019.py
deleted file mode 100755
index c12d71c..0000000
--- a/greek_normalisation/to2019.py
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env python3
-
-import fileinput
-import sys
-
-
-CHARACTERS_TO_CHANGE = [
-    "\u02BC",
-    "\u1FBF",
-]
-
-lines_changed = 0
-
-with fileinput.input() as f:
-    for line in f:
-        text = line
-        for ch in CHARACTERS_TO_CHANGE:
-            text = text.replace(ch, "\u2019")
-        print(text, end="")
-        if text != line:
-            lines_changed += 1
-
-print(f"{lines_changed} lines changed", file=sys.stderr)
diff --git a/greek_normalisation/utils.py b/greek_normalisation/utils.py
index 87b032e..7b90a20 100644
--- a/greek_normalisation/utils.py
+++ b/greek_normalisation/utils.py
@@ -26,6 +26,10 @@ def nfkc(s):
     return unicodedata.normalize("NFKC", s)
 
 
+def convert_to_2019(s):
+    return s.replace("\u02BC", "\u2019").replace("\u1FBF", "\u2019")
+
+
 def strip_accents(s):
     return nfc("".join(
         cp for cp in nfd(s) if cp not in ACCENTS
diff --git a/setup.py b/setup.py
index ed7441c..14bb3dd 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setup(
     name="greek-normalisation",
-    version="0.3",
+    version="0.4",
     description="Python 3 utilities for validating and normalising Ancient Greek text",
     url="http://github.com/jtauber/greek-normalisation",
     author="James Tauber",
@@ -18,6 +18,7 @@
     packages=["greek_normalisation"],
     entry_points={
         "console_scripts": [
+            "to2019 = greek_normalisation.convert_files:to_2019",
             "toNFC = greek_normalisation.convert_files:to_nfc",
             "toNFD = greek_normalisation.convert_files:to_nfd",
         ],