diff --git a/patches/fix_maps.php b/patches/fix_maps.php
new file mode 100644
index 0000000..555619e
--- /dev/null
+++ b/patches/fix_maps.php
@@ -0,0 +1,92 @@
+<?php
+
+if (!defined('TYPO3_COMPOSER_MODE')) {
+    define('TYPO3_COMPOSER_MODE', true);
+}
+
+$classLoader = require __DIR__ . '/../vendor/autoload.php';
+
+\TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::run(
+    1,
+    \TYPO3\CMS\Core\Core\SystemEnvironmentBuilder::REQUESTTYPE_CLI
+);
+
+\TYPO3\CMS\Core\Core\Bootstrap::init($classLoader);
+
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Database\ConnectionPool;
+
+$connection = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('tt_content');
+$queryBuilder = $connection->createQueryBuilder();
+
+$result = $queryBuilder
+    ->select('uid', 'pi_flexform')
+    ->from('tt_content')
+    ->where($queryBuilder->expr()->eq('CType', $queryBuilder->createNamedParameter('ods_osm_pi1')))
+    ->executeQuery();
+
+$rows = $result->fetchAllAssociative();
+
+$count = 0;
+
+foreach ($rows as $row) {
+    if (empty($row['pi_flexform'])) {
+        continue;
+    }
+
+    $xml = simplexml_load_string($row['pi_flexform']);
+    if (!$xml || !isset($xml->data->sheet)) {
+        continue;
+    }
+
+    $targetSheet = null;
+    foreach ($xml->data->sheet as $sheet) {
+        if ((string)$sheet['index'] === 'sDEF') {
+            $targetSheet = $sheet;
+            break;
+        }
+    }
+    if (!$targetSheet) {
+        continue;
+    }
+
+    $targetLang = null;
+    foreach ($targetSheet->language as $lang) {
+        if ((string)$lang['index'] === 'lDEF') {
+            $targetLang = $lang;
+            break;
+        }
+    }
+    if (!$targetLang) {
+        continue;
+    }
+
+    $updateField = function($langNode, $fieldName, $newValue) {
+        $fieldFound = null;
+        foreach ($langNode->field as $field) {
+            if ((string)$field['index'] === $fieldName) {
+                $fieldFound = $field;
+                break;
+            }
+        }
+
+        if ($fieldFound) {
+            $fieldFound->value[0] = $newValue;
+        }
+    };
+
+    $updateField($targetLang, 'show_popups', '1');
+    $updateField($targetLang, 'show_layerswitcher', '-1');
+
+    // DB save
+    $connection->update(
+        'tt_content',
+        ['pi_flexform' => $xml->asXML()],
+        ['uid' => $row['uid']]
+    );
+
+    echo "Updated UID: " . $row['uid'] . "\n";
+    $count++;
+}
+
+echo "OK. Total updated: $count\n";
\ No newline at end of file