diff --git a/libraries/Util.php b/libraries/Util.php
index cbbb80e175..161a18ebff 100644
--- a/libraries/Util.php
+++ b/libraries/Util.php
@@ -1213,7 +1213,7 @@ class Util
                         ) . ']';
                     $url = 'https://mariadb.org/explain_analyzer/analyze/'
                         . '?client=phpMyAdmin&raw_explain='
-                        . self::_generateRowQueryOutput($sql_query);
+                        . urlencode(self::_generateRowQueryOutput($sql_query));
                     $explain_link .= ' ['
                         . self::linkOrButton(
                             htmlspecialchars('url.php?url=' . urlencode($url)),