diff --git a/admin/migration.php b/admin/migration.php
index ad58d667ea1272746c24bc84e0dfb2a5cf731dd1..cf8f8f9b98f5297b37fb80f86a048d7a053c0160 100644
--- a/admin/migration.php
+++ b/admin/migration.php
@@ -26,6 +26,7 @@ use Framadate\Migration\Alter_Comment_table_for_name_length;
 use Framadate\Migration\Alter_Comment_table_adding_date;
 use Framadate\Migration\Generate_uniqId_for_old_votes;
 use Framadate\Migration\AddColumns_password_hash_And_results_publicly_visible_In_poll_For_0_9;
+use Framadate\Migration\Increase_pollId_size;
 use Framadate\Migration\Migration;
 use Framadate\Migration\RPadVotes_from_0_8;
 use Framadate\Utils;
@@ -46,6 +47,7 @@ $migrations = [
     new Alter_Comment_table_for_name_length(),
     new Alter_Comment_table_adding_date(),
     new AddColumns_password_hash_And_results_publicly_visible_In_poll_For_0_9(),
+    new Increase_pollId_size()
 ];
 // ---------------------------------------
 
diff --git a/app/classes/Framadate/Migration/Increase_pollId_size.php b/app/classes/Framadate/Migration/Increase_pollId_size.php
new file mode 100644
index 0000000000000000000000000000000000000000..80fb500ec4c99f724c52f62eb1d3e440845f91a3
--- /dev/null
+++ b/app/classes/Framadate/Migration/Increase_pollId_size.php
@@ -0,0 +1,46 @@
+<?php
+namespace Framadate\Migration;
+
+use Framadate\Utils;
+
+class Increase_pollId_size implements Migration {
+
+    function __construct() {
+    }
+
+    /**
+     * This method should describe in english what is the purpose of the migration class.
+     *
+     * @return string The description of the migration class
+     */
+    function description() {
+        return 'Increase the size of id column in poll table';
+    }
+
+    /**
+     * This method could check if the execute method should be called.
+     * It is called before the execute method.
+     *
+     * @param \PDO $pdo The connection to database
+     * @return bool true if the Migration should be executed
+     */
+    function preCondition(\PDO $pdo) {
+        return true;
+    }
+
+    /**
+     * This methode is called only one time in the migration page.
+     *
+     * @param \PDO $pdo The connection to database
+     * @return bool true if the execution succeeded
+     */
+    function execute(\PDO $pdo) {
+        $this->alterPollTable($pdo);
+    }
+
+    private function alterPollTable(\PDO $pdo) {
+        $pdo->exec('
+        ALTER TABLE `' . Utils::table('poll') . '`
+        CHANGE `id` `id` VARCHAR(64) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL;');
+    }
+}