diff --git a/.gitignore b/.gitignore
index 9f1ead3dd..ee2ed042e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,4 @@ venv
 doc/source/main_help.rst
 Dockerfile
 b2/licenses_output.txt
-b2.spec
+*.spec
diff --git a/noxfile.py b/noxfile.py
index 474fd7143..7baf4f4da 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -317,9 +317,9 @@ def bundle(session: nox.Session):
             'VERSION': version,
             'NAME': binary_name,
         })
-        pathlib.Path('b2.spec').write_text(spec)
+        pathlib.Path(f'{binary_name}.spec').write_text(spec)
 
-        session.run('pyinstaller', *session.posargs, 'b2.spec', **run_kwargs)
+        session.run('pyinstaller', *session.posargs, f'{binary_name}.spec', **run_kwargs)
 
         if SYSTEM == 'linux' and not NO_STATICX:
             session.run(
@@ -343,7 +343,9 @@ def bundle(session: nox.Session):
 
         # Pick only the shortest named executable.
         # All the longer ones should be for different versions, the shortest one will be the latest stable.
-        executable = min([str(path) for path in pathlib.Path('dist').glob('*')], key=lambda path: len(path))
+        executable = min(
+            [str(path) for path in pathlib.Path('dist').glob('*')], key=lambda path: len(path)
+        )
         print(f'sut_path={executable}')
 
 
diff --git a/pyinstaller-hooks/hook-b2.py b/pyinstaller-hooks/hook-b2.py
index 7e9e6fafc..110efaa0e 100644
--- a/pyinstaller-hooks/hook-b2.py
+++ b/pyinstaller-hooks/hook-b2.py
@@ -13,5 +13,21 @@
 license_file = Path('b2/licenses_output.txt')
 assert license_file.exists()
 datas = [
-    (str(license_file), '.'),
+    # When '.' was provided here, the license file was copied to the root of the executable.
+    # Before ApiVer, it pasted the file to the `b2/` directory.
+    # I have no idea why it worked before or how it works now.
+    # If you mean to debug it in the future, know that `pyinstaller` provides a special
+    # attribute in the `sys` module whenever it runs.
+    #
+    # Example:
+    #     import sys
+    #     if hasattr(sys, '_MEIPASS'):
+    #         self._print(f'{NAME}')
+    #         self._print(f'{sys._MEIPASS}')
+    #         elems = [elem for elem in pathlib.Path(sys._MEIPASS).glob('**/*')]
+    #         self._print(f'{elems}')
+    #
+    # If used at the very start of the `_run` of `Licenses` command, it will print
+    # all the files that were unpacked from the executable.
+    (str(license_file), 'b2/'),
 ]