diff --git a/lib/schema.php b/lib/schema.php
index 0ac2255f16..e188037e68 100644
--- a/lib/schema.php
+++ b/lib/schema.php
@@ -562,12 +562,18 @@ class Schema
         $uniques = $this->diffArrays($old, $def, 'unique keys');
         $indexes = $this->diffArrays($old, $def, 'indexes');
         $foreign = $this->diffArrays($old, $def, 'foreign keys');
+        $fulltext = $this->diffArrays($old, $def, 'fulltext indexes');
 
         // Drop any obsolete or modified indexes ahead...
         foreach ($indexes['del'] + $indexes['mod'] as $indexName) {
             $this->appendDropIndex($statements, $tableName, $indexName);
         }
 
+        // Drop any obsolete or modified fulltext indexes ahead...
+        foreach ($fulltext['del'] + $fulltext['mod'] as $indexName) {
+            $this->appendDropIndex($statements, $tableName, $indexName);
+        }
+
         // For efficiency, we want this all in one
         // query, instead of using our methods.