diff --git a/redash/query_runner/vertica.py b/redash/query_runner/vertica.py
index 8dcb97e421..e28371d7f3 100644
--- a/redash/query_runner/vertica.py
+++ b/redash/query_runner/vertica.py
@@ -129,7 +129,7 @@ def run_query(self, query, user):
             if cursor.description is not None:
                 columns_data = [(i[0], types_map.get(i[1], None)) for i in cursor.description]
 
-                columns = self.fetch_columns(column_data)
+                columns = self.fetch_columns(columns_data)
                 rows = [dict(zip(([c['name'] for c in columns]), r))
                         for r in cursor.fetchall()]