diff --git a/mod/hotpot/db/mysql.php b/mod/hotpot/db/mysql.php
index 4d4577ece3b..4a028b463e7 100644
--- a/mod/hotpot/db/mysql.php
+++ b/mod/hotpot/db/mysql.php
@@ -21,6 +21,15 @@ function hotpot_upgrade($oldversion) {
 		$ok = $ok && hotpot_get_update_to_v2();
 		$ok = $ok && hotpot_update_to_v2_1_2();
 	}
+	
+    if ($oldversion < 2006042100) {
+        $result = execute_sql("ALTER TABLE {$CFG->prefix}hotpot_questions DROP INDEX {$CFG->prefix}hotpot_questions_name_idx");
+        $result = execute_sql("ALTER TABLE {$CFG->prefix}hotpot_questions ADD INDEX hotpot_questions_name_idx (name(20))");
+        
+    }
+	
+	
+	
 	return $ok;
 }
 function hotpot_get_update_to_v2() {
diff --git a/mod/hotpot/db/mysql.sql b/mod/hotpot/db/mysql.sql
index 92651b0fc28..14b7ef23235 100644
--- a/mod/hotpot/db/mysql.sql
+++ b/mod/hotpot/db/mysql.sql
@@ -67,7 +67,7 @@ CREATE TABLE prefix_hotpot_questions (
     text int(10) unsigned default NULL,
     hotpot int(10) unsigned NOT NULL default '0',
     PRIMARY KEY (id),
-    KEY prefix_hotpot_questions_name_idx (name(20)),
+    KEY hotpot_questions_name_idx (name(20)),
     KEY prefix_hotpot_questions_hotpot_idx (hotpot)
 ) TYPE=MyISAM COMMENT='details about questions in Hot Potatoes quiz attempts';
 #
diff --git a/mod/hotpot/version.php b/mod/hotpot/version.php
index 5e41689c56e..5c7fce15727 100644
--- a/mod/hotpot/version.php
+++ b/mod/hotpot/version.php
@@ -3,7 +3,7 @@
 ///  Code fragment to define the version of hotpot
 ///  This fragment is called by moodle_needs_upgrading() and /admin/index.php
 /////////////////////////////////////////////////////////////////////////////////
-$module->version  = 2005090715;  // release date of this version (see note below)
+$module->version  = 2006042100;  // release date of this version (see note below)
 $module->release  = 'v2.1.15';    // human-friendly version name (used in mod/hotpot/lib.php)
 $module->cron     = 0;           // period for cron to check this module (secs)
 // interpretation of YYYYMMDDXY version numbers