diff --git a/drizzle-orm/src/mysql-core/columns/char.ts b/drizzle-orm/src/mysql-core/columns/char.ts
index 9c7049135..55743a5d4 100644
--- a/drizzle-orm/src/mysql-core/columns/char.ts
+++ b/drizzle-orm/src/mysql-core/columns/char.ts
@@ -24,7 +24,7 @@ export class MySqlCharBuilder<
 > extends MySqlColumnBuilder<
 	T,
 	MySqlCharConfig<T['enumValues'], T['length']>,
-	{ length?: T['length'] }
+	{ length: T['length'] }
 > {
 	static override readonly [entityKind]: string = 'MySqlCharBuilder';
 
@@ -46,7 +46,7 @@ export class MySqlCharBuilder<
 }
 
 export class MySqlChar<T extends ColumnBaseConfig<'string', 'MySqlChar'> & { length?: number | undefined }>
-	extends MySqlColumn<T, MySqlCharConfig<T['enumValues'], T['length']>, { length?: T['length'] }>
+	extends MySqlColumn<T, MySqlCharConfig<T['enumValues'], T['length']>, { length: T['length'] }>
 {
 	static override readonly [entityKind]: string = 'MySqlChar';
 
diff --git a/drizzle-orm/src/mysql-core/columns/varchar.ts b/drizzle-orm/src/mysql-core/columns/varchar.ts
index cd946a5b6..0a0bde857 100644
--- a/drizzle-orm/src/mysql-core/columns/varchar.ts
+++ b/drizzle-orm/src/mysql-core/columns/varchar.ts
@@ -45,7 +45,7 @@ export class MySqlVarCharBuilder<
 }
 
 export class MySqlVarChar<T extends ColumnBaseConfig<'string', 'MySqlVarChar'> & { length?: number | undefined }>
-	extends MySqlColumn<T, MySqlVarCharConfig<T['enumValues'], T['length']>>
+	extends MySqlColumn<T, MySqlVarCharConfig<T['enumValues'], T['length']>, { length: T['length'] }>
 {
 	static override readonly [entityKind]: string = 'MySqlVarChar';