diff --git a/settings.php b/settings.php
index 13efe4d..dd18d6d 100644
--- a/settings.php
+++ b/settings.php
@@ -58,7 +58,7 @@
         new lang_string('jsonprompt', 'qtype_aitext'),
         new lang_string('jsonprompt_setting', 'qtype_aitext'),
         'Return only a JSON object which enumerates a set of 2 elements.The JSON object should be in
-	this format: {feedback":"string","marks":"number"} where marks is a single number summing all marks. 
+	this format: {feedback":"string","marks":"number"} where marks is a single number summing all marks.
    	Also show the marks as part of the feedback.',
         PARAM_RAW,
         20,