diff --git a/mod/dialogue/db/mysql.php b/mod/dialogue/db/mysql.php
index f6ef7371284..5300693f9d9 100644
--- a/mod/dialogue/db/mysql.php
+++ b/mod/dialogue/db/mysql.php
@@ -15,7 +15,7 @@ function dialogue_upgrade($oldversion) {
 		execute_sql(" ALTER TABLE `{$CFG->prefix}dialogue_conversations` ADD `seenon` INT(10) unsigned NOT NULL DEFAULT '0' AFTER `closed`");
 		}
     
-    if ($oldversion < 2004111000) {
+    if ($oldversion < 2004060401) {
         modify_database('','ALTER TABLE prefix_dialogue ADD KEY course (course);');
         modify_database('','ALTER TABLE prefix_dialogue_conversations ADD KEY recipientid (recipientid);');
         modify_database('','ALTER TABLE prefix_dialogue_conversations ADD KEY userid (userid);');
diff --git a/mod/dialogue/db/postgres7.php b/mod/dialogue/db/postgres7.php
index 207646edfbd..c20945cb673 100644
--- a/mod/dialogue/db/postgres7.php
+++ b/mod/dialogue/db/postgres7.php
@@ -6,7 +6,7 @@ function dialogue_upgrade($oldversion) {
 
     global $CFG;
 
-    if ($oldversion < 2004111000) {
+    if ($oldversion < 2004060401) {
         modify_database('','CREATE INDEX prefix_dialogue_course_idx ON prefix_dialogue (course);');
         modify_database('','CREATE INDEX prefix_dialogue_conversations_userid_idx ON prefix_dialogue_conversations (userid);');
         modify_database('','CREATE INDEX prefix_dialogue_conversations_recipientid_idx ON prefix_dialogue_conversations (recipientid);');
diff --git a/mod/dialogue/version.php b/mod/dialogue/version.php
index 9721770883a..af13db738f3 100644
--- a/mod/dialogue/version.php
+++ b/mod/dialogue/version.php
@@ -5,7 +5,7 @@
 //  This fragment is called by /admin/index.php
 ////////////////////////////////////////////////////////////////////////////////
 
-$module->version  = 2004111000;
+$module->version  = 2004060401;
 $module->requires = 2004052505;  // Requires this Moodle version
 $module->cron     = 60;