diff --git a/sea-orm-migration/src/schema.rs b/sea-orm-migration/src/schema.rs
index dda97bcf4..67447441d 100644
--- a/sea-orm-migration/src/schema.rs
+++ b/sea-orm-migration/src/schema.rs
@@ -543,11 +543,11 @@ pub fn uuid_uniq<T: IntoIden>(col: T) -> ColumnDef {
     uuid(col).unique_key().take()
 }
 
-pub fn custom<T: IntoIden>(col: T, name: T) -> ColumnDef {
+pub fn custom<T: IntoIden, N: IntoIden>(col: T, name: N) -> ColumnDef {
     ColumnDef::new(col).custom(name).not_null().take()
 }
 
-pub fn custom_null<T: IntoIden>(col: T, name: T) -> ColumnDef {
+pub fn custom_null<T: IntoIden, N: IntoIden>(col: T, name: N) -> ColumnDef {
     ColumnDef::new(col).custom(name).null().take()
 }