diff --git a/src/Services/Mastodon_api.php b/src/Services/Mastodon_api.php
index da4dd20..c9551ee 100644
--- a/src/Services/Mastodon_api.php
+++ b/src/Services/Mastodon_api.php
@@ -220,7 +220,7 @@ class Mastodon_api
         if (isset($parameters['body']['poll']['options'])) {
             $url .= strpos($url, '?') !== false ? '' : '?';
             foreach ($parameters['body']['poll']['options'] as $key => $value) {
-                $url .= 'poll[options][]=' . $value . '&';
+                $url .= 'poll[options][]=' . urlencode($value) . '&';
             }
             $url = substr($url, 0, -1);