diff --git a/clearml/utilities/plotly_reporter.py b/clearml/utilities/plotly_reporter.py
index 515b9fd8..9f9d2696 100644
--- a/clearml/utilities/plotly_reporter.py
+++ b/clearml/utilities/plotly_reporter.py
@@ -504,7 +504,7 @@ def create_plotly_table(table_plot, title, series, layout_config=None):
         cells_values = table_plot.T.values.tolist()
         if index_added:
             if isinstance(table_plot.index, pd.MultiIndex):
-                headers_values = list(table_plot.index.names or []) + headers_values
+                headers_values = [n or "" for n in (table_plot.index.names or [])] + headers_values
                 cells_values = list(zip(*(table_plot.index.values.tolist() or []))) + cells_values
             else:
                 headers_values.insert(0, table_plot.index.name or "")