diff --git a/plugins/data_query/sql_mysql.py b/plugins/data_query/sql_mysql.py
index e1d4007be..c6f121812 100755
--- a/plugins/data_query/sql_mysql.py
+++ b/plugins/data_query/sql_mysql.py
@@ -430,6 +430,9 @@ class nosqlMySQLCtr():
             """
         )
 
+        if data is None:
+            return mw.returnData(True, 'ok', [])
+
         for i in range(len(data)):
             row = data[i]