diff --git a/python_modules/dagster/dagster/_core/definitions/assets.py b/python_modules/dagster/dagster/_core/definitions/assets.py
index 4be96fb92d93a..31ef145987ed5 100644
--- a/python_modules/dagster/dagster/_core/definitions/assets.py
+++ b/python_modules/dagster/dagster/_core/definitions/assets.py
@@ -1507,9 +1507,9 @@ def _output_to_source_asset(self, output_name: str) -> SourceAsset:
 
             return SourceAsset(
                 key=key,
-                metadata=output_def.metadata,
+                metadata=spec.metadata,
                 io_manager_key=output_def.io_manager_key,
-                description=output_def.description,
+                description=spec.description,
                 resource_defs=self.resource_defs,
                 partitions_def=self.partitions_def,
                 group_name=spec.group_name,
diff --git a/python_modules/dagster/dagster_tests/storage_tests/test_input_manager.py b/python_modules/dagster/dagster_tests/storage_tests/test_input_manager.py
index bffabed3ca42f..1e8b4f4e8a418 100644
--- a/python_modules/dagster/dagster_tests/storage_tests/test_input_manager.py
+++ b/python_modules/dagster/dagster_tests/storage_tests/test_input_manager.py
@@ -6,6 +6,7 @@
     AssetKey,
     DagsterInstance,
     DagsterInvalidDefinitionError,
+    DataVersion,
     In,
     InputManager,
     IOManager,
@@ -16,6 +17,7 @@
     io_manager,
     job,
     materialize,
+    observable_source_asset,
     op,
     resource,
 )
@@ -367,6 +369,32 @@ def handle_output(self, context, obj): ...
     assert output._get_output_for_handle("downstream", "result") == 3  # noqa: SLF001
 
 
+def test_input_manager_with_observable_source_asset() -> None:
+    fancy_metadata = {"foo": "bar", "baz": 1.23}
+
+    @observable_source_asset(metadata=fancy_metadata)
+    def upstream():
+        return DataVersion("1")
+
+    @asset(ins={"upstream": AssetIn(input_manager_key="special_io_manager")})
+    def downstream(upstream) -> int:
+        return upstream + 1
+
+    class MyIOManager(IOManager):
+        def load_input(self, context) -> int:
+            assert context.upstream_output is not None
+            assert context.upstream_output.asset_key == AssetKey(["upstream"])
+            # the process of converting assets to source assets leaves an extra metadata entry
+            # of dagster/io_manager_key in the dictionary, so we can't use simple equality here
+            for k, v in fancy_metadata.items():
+                assert context.upstream_output.definition_metadata[k] == v
+            return 2
+
+        def handle_output(self, context, obj) -> None: ...
+
+    materialize(assets=[upstream, downstream], resources={"special_io_manager": MyIOManager()})
+
+
 def test_input_manager_with_assets_no_default_io_manager():
     """Tests loading an upstream asset with an input manager when the downstream asset also uses a
     custom io manager. Fixes a bug where dagster expected the io_manager key to be provided.