--- a/setupbase.py
+++ b/setupbase.py
@@ -129,17 +129,6 @@
     build_py.finalize_options()
 
 
-class bdist_egg_disabled(bdist_egg):
-    """Disabled version of bdist_egg
-
-    Prevents setup.py install performing setuptools' default easy_install,
-    which it should never ever do.
-    """
-    def run(self):
-        sys.exit("Aborting implicit building of eggs. Use `pip install .` "
-                 " to install from source.")
-
-
 def create_cmdclass(prerelease_cmd=None, package_data_spec=None,
                     data_files_spec=None):
     """Create a command class with the given optional prerelease class.
@@ -179,14 +168,9 @@
     wrapper = functools.partial(_wrap_command, wrapped)
     handle_files = _get_file_handler(package_data_spec, data_files_spec)
 
-    if 'bdist_egg' in sys.argv:
-        egg = wrapper(bdist_egg, strict=True)
-    else:
-        egg = bdist_egg_disabled
-
     cmdclass = dict(
         build_py=wrapper(build_py, strict=is_repo),
-        bdist_egg=egg,
+        bdist_egg=wrapper(bdist_egg, strict=True),
         sdist=wrapper(sdist, strict=True),
         handle_files=handle_files,
     )