diff --git a/misc-scripts/analysis_description/chech_web_data_column.pl b/misc-scripts/analysis_description/chech_web_data_column.pl
index cd2f13f6528167adc5668ebfefa1279e6fb6aff1..141b2445ff70149b4a1414611f219ed8b056f48b 100644
--- a/misc-scripts/analysis_description/chech_web_data_column.pl
+++ b/misc-scripts/analysis_description/chech_web_data_column.pl
@@ -15,7 +15,11 @@
    This column has been giving problems due to the peculiarity of the data 
    (string containing quotes that has to be eval'd into a hash ref). In 
    order to check it, this script should be run after load_analysis_description
-   and apply_rules
+   and apply_rules.
+   
+   If you are using the production admin interface then ALL web data entries
+   are checked for well-formedness. You should only run this script if you
+   are manually inserting C<web_data>.
 
 =head1 OPTIONS