diff --git a/mod/resource/db/install.xml b/mod/resource/db/install.xml
index b31e110d376..e7b8de2db96 100644
--- a/mod/resource/db/install.xml
+++ b/mod/resource/db/install.xml
@@ -12,7 +12,7 @@
         <FIELD NAME="type" TYPE="char" LENGTH="30" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="name" NEXT="reference"/>
         <FIELD NAME="reference" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="type" NEXT="summary"/>
         <FIELD NAME="summary" TYPE="text" LENGTH="small" NOTNULL="false" SEQUENCE="false" ENUM="false" PREVIOUS="reference" NEXT="alltext"/>
-        <FIELD NAME="alltext" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="summary" NEXT="popup"/>
+        <FIELD NAME="alltext" TYPE="text" LENGTH="medium" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="summary" NEXT="popup"/>
         <FIELD NAME="popup" TYPE="text" LENGTH="small" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="alltext" NEXT="options"/>
         <FIELD NAME="options" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false" ENUM="false" PREVIOUS="popup" NEXT="timemodified"/>
         <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" UNSIGNED="true" DEFAULT="0" SEQUENCE="false" ENUM="false" PREVIOUS="options"/>
diff --git a/mod/resource/db/upgrade.php b/mod/resource/db/upgrade.php
index 5152e08469e..dc1f0eb1c22 100644
--- a/mod/resource/db/upgrade.php
+++ b/mod/resource/db/upgrade.php
@@ -49,6 +49,20 @@ function xmldb_resource_upgrade($oldversion=0) {
         $result = $result && change_field_notnull($table, $field);
     }
 
+    if ($result && $oldversion < 2007012001) {
+
+        if ($CFG->dbfamily == 'mysql') { // Only needed under mysql. The rest are long texts since ages
+
+        /// Changing precision of field alltext on table resource to (medium)
+            $table = new XMLDBTable('resource');
+            $field = new XMLDBField('alltext');
+            $field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null, 'summary');
+
+        /// Launch change of precision for field alltext
+            $result = $result && change_field_precision($table, $field);
+        }
+    }
+
     return $result;
 }
 
diff --git a/mod/resource/version.php b/mod/resource/version.php
index 3882cbdb53d..c5f6fd5cfe2 100644
--- a/mod/resource/version.php
+++ b/mod/resource/version.php
@@ -5,7 +5,7 @@
 //  This fragment is called by /admin/index.php
 ////////////////////////////////////////////////////////////////////////////////
 
-$module->version  = 2007012000;
+$module->version  = 2007012001;
 $module->requires = 2006091700;  // Requires this Moodle version
 $module->cron     = 0;