diff --git a/setuptools/command/editable_wheel.py b/setuptools/command/editable_wheel.py
index a57f74e39de..bbf6999fe1f 100644
--- a/setuptools/command/editable_wheel.py
+++ b/setuptools/command/editable_wheel.py
@@ -79,8 +79,8 @@ def _install_namespaces(self, installation_dir, pth_prefix):
         if not dist.namespace_packages:
             return
 
-        target = Path(self.project_dir, self.pakcage_dir.get("", ".")).resolve()
-        installer = _NamespaceInstaller(dist, installation_dir, pth_prefix, target)
+        src_root = Path(self.project_dir, self.pakcage_dir.get("", ".")).resolve()
+        installer = _NamespaceInstaller(dist, installation_dir, pth_prefix, src_root)
         installer.install_namespaces()
 
     def _create_wheel_file(self, bdist_wheel):