diff --git a/db/install.xml b/db/install.xml
index 2296cd0..72f2e19 100644
--- a/db/install.xml
+++ b/db/install.xml
@@ -45,7 +45,7 @@
         <FIELD NAME="automarkcompleted" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="statusset" TYPE="int" LENGTH="5" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="Which set of statuses to use"/>
         <FIELD NAME="absenteereport" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="1" SEQUENCE="false"/>
-        <FIELD NAME="preventsharedip" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="1" SEQUENCE="false"/>
+        <FIELD NAME="preventsharedip" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="preventsharediptime" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="caleventid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="calendarevent" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="1" SEQUENCE="false"/>
diff --git a/db/upgrade.php b/db/upgrade.php
index aa0e5b0..9bdfba7 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -550,5 +550,20 @@ function xmldb_attendance_upgrade($oldversion=0) {
         upgrade_mod_savepoint(true, 2019012500, 'attendance');
     }
 
+    if ($oldversion < 2019061800) {
+
+        // Make sure default value  to '0'.
+        $table = new xmldb_table('attendance_sessions');
+        $field = new xmldb_field('preventsharedip', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED,
+            XMLDB_NOTNULL, null, '0', 'absenteereport');
+
+        if ($dbman->field_exists($table, $field)) {
+            $dbman->change_field_default($table, $field);
+        }
+
+        // Attendance savepoint reached.
+        upgrade_mod_savepoint(true, 2019061800, 'attendance');
+    }
+
     return $result;
 }
diff --git a/version.php b/version.php
index 6c1d89a..55f125e 100644
--- a/version.php
+++ b/version.php
@@ -23,7 +23,7 @@
  */
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version  = 2019052801;
+$plugin->version  = 2019061800;
 $plugin->requires = 2018102700; // Requires 3.6.
 $plugin->release = '3.6.7';
 $plugin->maturity  = MATURITY_STABLE;