diff --git a/schema/schema.go b/schema/schema.go
index 44ef46ed..92119283 100644
--- a/schema/schema.go
+++ b/schema/schema.go
@@ -82,7 +82,7 @@ func Parse(dest interface{}, cacheStore *sync.Map, namer Namer) (*Schema, error)
 
 // ParseWithSpecialTableName get data type from dialector with extra schema table
 func ParseWithSpecialTableName(dest interface{}, cacheStore *sync.Map, namer Namer, specialTableName string) (*Schema, error) {
-	cacheStore = &sync.Map{} // refresh cache store
+	cacheStore = &sync.Map{} // refresh cache store for read tableName
 
 	if dest == nil {
 		return nil, fmt.Errorf("%w: %+v", ErrUnsupportedDataType, dest)