diff --git a/poetry/installation/pip_installer.py b/poetry/installation/pip_installer.py
index 331a69b580e..349f222c73c 100644
--- a/poetry/installation/pip_installer.py
+++ b/poetry/installation/pip_installer.py
@@ -181,7 +181,6 @@ def create_temporary_requirement(self, package):
 
     def install_directory(self, package):
         from poetry.factory import Factory
-        from poetry.utils.env import NullEnv
         from poetry.utils.toml_file import TomlFile
 
         if package.root_dir:
@@ -215,7 +214,7 @@ def install_directory(self, package):
             from poetry.masonry.builders.editable import EditableBuilder
 
             builder = EditableBuilder(
-                Factory().create_poetry(pyproject.parent), NullEnv(), NullIO()
+                Factory().create_poetry(pyproject.parent), self._env, NullIO()
             )
 
             builder.build()
diff --git a/poetry/masonry/builders/editable.py b/poetry/masonry/builders/editable.py
index 1757bd4ff3d..15cfe53676a 100644
--- a/poetry/masonry/builders/editable.py
+++ b/poetry/masonry/builders/editable.py
@@ -38,7 +38,7 @@ def _setup_build(self):
                     str(self._poetry.file), str(self._poetry.file.with_suffix(".tmp"))
                 )
                 try:
-                    self._env.run_pip("install", "-e", str(self._path))
+                    self._env.run_pip("install", "--no-deps", "-e", str(self._path))
                 finally:
                     shutil.move(
                         str(self._poetry.file.with_suffix(".tmp")),