diff --git a/poetry/installation/executor.py b/poetry/installation/executor.py
index 79bf4e34a49..e1c917b3593 100644
--- a/poetry/installation/executor.py
+++ b/poetry/installation/executor.py
@@ -11,6 +11,7 @@
 
 from poetry.core.packages.file_dependency import FileDependency
 from poetry.core.packages.utils.link import Link
+from poetry.core.packages.utils.utils import url_to_path
 from poetry.core.pyproject.toml import PyProjectTOML
 from poetry.io.null_io import NullIO
 from poetry.utils._compat import PY2
@@ -617,7 +618,7 @@ def _download_link(self, operation, link):
                         hash_type,
                         FileDependency(
                             package.name,
-                            Path(archive.path)
+                            url_to_path(archive.path)
                             if isinstance(archive, Link)
                             else archive,
                         ).hash(hash_type),