diff --git a/phinx/src/Phinx/Db/Adapter/PdoAdapter.php b/phinx/src/Phinx/Db/Adapter/PdoAdapter.php
index 9924c3a..2f8d981 100644
--- a/phinx/src/Phinx/Db/Adapter/PdoAdapter.php
+++ b/phinx/src/Phinx/Db/Adapter/PdoAdapter.php
@@ -546,6 +546,7 @@ abstract class PdoAdapter implements AdapterInterface
             'char',
             'text',
             'integer',
+            'smallinteger',
             'biginteger',
             'float',
             'decimal',