diff --git a/.gitignore b/.gitignore
index 7024254..5004f20 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,7 +30,7 @@ MANIFEST
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
-*.spec
+# *.spec
 
 # Installer logs
 pip-log.txt
diff --git a/epson_print_conf.spec b/epson_print_conf.spec
new file mode 100644
index 0000000..5896ef7
--- /dev/null
+++ b/epson_print_conf.spec
@@ -0,0 +1,52 @@
+# -*- mode: python ; coding: utf-8 -*-
+
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--default", action="store_true")
+options = parser.parse_args()
+
+PROGRAM = [ 'gui.py' ]
+DATAS = [('printer_conf.pickle', '.')]
+
+if options.default:
+    PROGRAM = [ 'ui.py' ]
+    DATAS = []
+
+a = Analysis(
+    PROGRAM,
+    pathex=[],
+    binaries=[],
+    datas=DATAS,
+    hiddenimports=['babel.numbers'],
+    hookspath=[],
+    hooksconfig={},
+    runtime_hooks=[],
+    excludes=[],
+    noarchive=False,
+    optimize=0,
+)
+
+pyz = PYZ(a.pure)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    a.binaries,
+    a.datas,
+    [],
+    name='epson_print_conf',
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=True,
+    upx_exclude=[],
+    runtime_tmpdir=None,
+    console=False,
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+)
+