diff --git a/dvc/repo/diff.py b/dvc/repo/diff.py
index cb5857a60..ba7a4c44c 100644
--- a/dvc/repo/diff.py
+++ b/dvc/repo/diff.py
@@ -122,5 +122,5 @@ def _filter_missing(repo, paths):
         metadata = repo_tree.metadata(path)
         if metadata.is_dvc:
             out = metadata.outs[0]
-            if out.status()[str(out)] == "not in cache":
+            if out.status().get(str(out)) == "not in cache":
                 yield path