diff --git a/README.md b/README.md
index 529bba3..7274939 100644
--- a/README.md
+++ b/README.md
@@ -217,8 +217,8 @@ from existing notebooks. This invocation operates on all ipynb files in the repo
         blob.data = (nbformat.writes(notebook) + "\n").encode("utf-8")
         if old_len != len(blob.data):
             print(change.blob_id, change.filename, old_len, len(blob.data))
-    except NotJSONError as exc:
-         print("ERROR",type(exc),change.blob_id,filename)
+    except NotJSONError as e:
+         print("ERROR", type(e), change.blob_id, filename)
     '
 ```