diff --git a/plugins/plugin20.html b/plugins/plugin20.html
index 6323cd80..32b479a7 100644
--- a/plugins/plugin20.html
+++ b/plugins/plugin20.html
@@ -1134,7 +1134,7 @@ You only need these kind of complex checks if you're saving user input, which ca
 <br><b>dest:</b> Array to save the list to.
 <br>
 </blockquote>
-<b>Returns:</b> 1 for success, 0 for failure.
+<b>Returns:</b> 1 for success, 0 for failure (nonexistent, empty or inaccessible config file).
 <br><br><br>
 
 </body>