Index: includes/database/mysql/schema.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/database/mysql/schema.inc,v
retrieving revision 1.3
diff -w -u -p -r1.3 schema.inc
--- includes/database/mysql/schema.inc	19 Sep 2008 20:30:32 -0000	1.3
+++ includes/database/mysql/schema.inc	1 Oct 2008 19:36:48 -0000
@@ -299,7 +299,7 @@ class DatabaseSchema_mysql extends Datab
   }
 
   public function changeField(&$ret, $table, $field, $field_new, $spec, $keys_new = array()) {
-    $sql = 'ALTER TABLE {' . $table . '} CHANGE ' . $field . ' ' . $this->createFieldSql($field_new, $this->processField($spec));
+    $sql = 'ALTER TABLE {' . $table . '} CHANGE `' . $field . '` ' . $this->createFieldSql($field_new, $this->processField($spec));
     if (count($keys_new)) {
       $sql .= ', ADD ' . implode(', ADD ', $this->createKeysSql($keys_new));
     }