diff --git a/.gitignore b/.gitignore
index 9840f81..59f28f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,12 +25,6 @@ wheels/
 .installed.cfg
 *.egg
 
-# PyInstaller
-#  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
-
 # Installer logs
 pip-log.txt
 pip-delete-this-directory.txt
diff --git a/src/nndownload.spec b/src/nndownload.spec
new file mode 100644
index 0000000..99c8038
--- /dev/null
+++ b/src/nndownload.spec
@@ -0,0 +1,43 @@
+# -*- mode: python ; coding: utf-8 -*-
+
+
+a = Analysis(
+    ['nndownload.py'],
+    pathex=[],
+    binaries=[],
+    datas=[],
+    hiddenimports=[],
+    hookspath=[],
+    hooksconfig={},
+    runtime_hooks=[],
+    excludes=[],
+    noarchive=False,
+)
+pyz = PYZ(a.pure)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    [],
+    exclude_binaries=True,
+    name='nndownload',
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=True,
+    console=True,
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+)
+coll = COLLECT(
+    exe,
+    a.binaries,
+    a.datas,
+    strip=False,
+    upx=True,
+    upx_exclude=[],
+    name='nndownload',
+)