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-rw-r--r--gn3/csvcmp.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gn3/csvcmp.py b/gn3/csvcmp.py
index 82d74d0..43b795d 100644
--- a/gn3/csvcmp.py
+++ b/gn3/csvcmp.py
@@ -79,7 +79,7 @@ def csv_diff(base_csv, delta_csv, tmp_dir="/tmp") -> dict:
                       f"{file_name1} {file_name2} "
                       '--format json"'))
     if _r.get("code") == 0:
-        _r = json.loads(_r.get("output"))
+        _r = json.loads(_r.get("output", ""))
         if any(_r.values()):
             _r["Columns"] = max(base_csv_header, delta_csv_header)
     else: