diff --git a/poetry/repositories/legacy_repository.py b/poetry/repositories/legacy_repository.py
index 4bb0496eb29..f850c29c85a 100644
--- a/poetry/repositories/legacy_repository.py
+++ b/poetry/repositories/legacy_repository.py
@@ -269,6 +269,8 @@ def find_packages(
 
         for version in versions:
             package = Package(name, version)
+            package.source_type = "legacy"
+            package.source_reference = self.name
             package.source_url = self._url
 
             if extras is not None:
@@ -313,6 +315,7 @@ def package(
             if release_info["requires_python"]:
                 package.python_versions = release_info["requires_python"]
 
+            package.source_type = "legacy"
             package.source_url = self._url
             package.source_reference = self.name
 
diff --git a/tests/repositories/test_legacy_repository.py b/tests/repositories/test_legacy_repository.py
index 3803da552ce..43aa8aae028 100644
--- a/tests/repositories/test_legacy_repository.py
+++ b/tests/repositories/test_legacy_repository.py
@@ -84,6 +84,9 @@ def test_get_package_information_fallback_read_setup():
 
     package = repo.package("jupyter", "1.0.0")
 
+    assert package.source_type == "legacy"
+    assert package.source_reference == repo.name
+    assert package.source_url == repo.url
     assert package.name == "jupyter"
     assert package.version.text == "1.0.0"
     assert (
@@ -142,6 +145,10 @@ def test_find_packages_no_prereleases():
 
     assert len(packages) == 1
 
+    assert packages[0].source_type == "legacy"
+    assert packages[0].source_reference == repo.name
+    assert packages[0].source_url == repo.url
+
 
 def test_get_package_information_chooses_correct_distribution():
     repo = MockRepository()