diff --git a/src/Column/ColumnDefinitionBuilder.php b/src/Column/ColumnDefinitionBuilder.php
index ac2cd3f..bd5853e 100644
--- a/src/Column/ColumnDefinitionBuilder.php
+++ b/src/Column/ColumnDefinitionBuilder.php
@@ -51,11 +51,6 @@ public function build(ColumnInterface $column): string
             . $this->buildExtra($column);
     }
 
-    protected function isAllowSize(string $dbType): bool
-    {
-        return in_array(strtolower(preg_replace('/\([^)]+\)/', '', $dbType)), self::TYPES_WITH_SIZE, true);
-    }
-
     protected function buildOnDelete(string $onDelete): string
     {
         return match ($onDelete = strtoupper($onDelete)) {
@@ -110,4 +105,9 @@ protected function getDefaultUuidExpression(): string
     {
         return 'sys_guid()';
     }
+
+    protected function isAllowSize(string $dbType): bool
+    {
+        return in_array(strtolower(preg_replace('/\([^)]+\)/', '', $dbType)), self::TYPES_WITH_SIZE, true);
+    }
 }