diff --git a/jupyter_cache/__init__.py b/jupyter_cache/__init__.py
index 6a0d32d..b039996 100644
--- a/jupyter_cache/__init__.py
+++ b/jupyter_cache/__init__.py
@@ -1,5 +1,5 @@
 # NOTE: never import anything here, in order to maintain CLI speed
-__version__ = "0.2.0"
+__version__ = "0.2.1"
 
 
 def get_cache(path, cache_cls=None):
diff --git a/jupyter_cache/cache/main.py b/jupyter_cache/cache/main.py
index 44306f9..5e99be3 100644
--- a/jupyter_cache/cache/main.py
+++ b/jupyter_cache/cache/main.py
@@ -351,7 +351,7 @@ def merge_match_into_notebook(
             nb.metadata = cache_nb.metadata
         else:
             for key in nb_meta:
-                if key in cache_nb:
+                if key in cache_nb.metadata:
                     nb.metadata[key] = cache_nb.metadata[key]
         for idx in range(len(nb.cells)):
             if nb.cells[idx].cell_type == "code":