diff --git a/poetry/factory.py b/poetry/factory.py
index 90c9cec3295..0b472f4bd67 100644
--- a/poetry/factory.py
+++ b/poetry/factory.py
@@ -30,7 +30,7 @@ class Factory:
     """
 
     def create_poetry(
-        self, cwd=None, io=None
+        self, cwd=None, io=None, original_root=None,
     ):  # type: (Optional[Path], Optional[IO]) -> Poetry
         if io is None:
             io = NullIO()
@@ -57,7 +57,7 @@ def create_poetry(
         name = local_config["name"]
         version = local_config["version"]
         package = ProjectPackage(name, version, version)
-        package.root_dir = poetry_file.parent
+        package.root_dir = original_root or poetry_file.parent
 
         for author in local_config["authors"]:
             package.authors.append(author)
diff --git a/poetry/masonry/builders/complete.py b/poetry/masonry/builders/complete.py
index 6339f9351b5..af96816aab9 100644
--- a/poetry/masonry/builders/complete.py
+++ b/poetry/masonry/builders/complete.py
@@ -43,7 +43,9 @@ def build(self):
 
                 with self.unpacked_tarball(sdist_file) as tmpdir:
                     WheelBuilder.make_in(
-                        Factory().create_poetry(tmpdir),
+                        Factory().create_poetry(
+                            tmpdir, original_root=self._poetry.file.path.parent
+                        ),
                         self._env,
                         self._io,
                         dist_dir,
@@ -52,7 +54,9 @@ def build(self):
         else:
             with self.unpacked_tarball(sdist_file) as tmpdir:
                 WheelBuilder.make_in(
-                    Factory().create_poetry(tmpdir),
+                    Factory().create_poetry(
+                        tmpdir, original_root=self._poetry.file.path.parent
+                    ),
                     self._env,
                     self._io,
                     dist_dir,