diff --git a/src/lobos/backends/postgresql.clj b/src/lobos/backends/postgresql.clj
index 9a0d809..4b86c4e 100644
--- a/src/lobos/backends/postgresql.clj
+++ b/src/lobos/backends/postgresql.clj
@@ -77,9 +77,10 @@
 (defmethod compile [:postgresql ColumnDefinition]
   [definition]
   (let [{:keys [db-spec cname data-type default
-                auto-inc not-null others]} definition]
+                auto-inc not-null others alter]} definition]
     (apply join \space
       (as-identifier db-spec cname)
+      (when alter "TYPE")
       (if auto-inc
         (if (= :bigint (:dtype data-type))
           "BIGSERIAL"
diff --git a/src/lobos/compiler.clj b/src/lobos/compiler.clj
index 12ea669..1256342 100644
--- a/src/lobos/compiler.clj
+++ b/src/lobos/compiler.clj
@@ -311,7 +311,7 @@
 (defmethod compile [::standard AlterModifyDataTypeAndOptionsAction]
   [action]
   (let [{:keys [db-spec element]} action]
-    (str "ALTER COLUMN " (compile element))))
+    (str "ALTER COLUMN " (compile (assoc element :alter :alter)))))
 
 (defmethod compile [::standard AlterModifyDefaultAction]
   [action]