diff --git a/src/mapper/index.ts b/src/mapper/index.ts
index 6636b69cf..df6b28498 100644
--- a/src/mapper/index.ts
+++ b/src/mapper/index.ts
@@ -1,3 +1,4 @@
+export * from './type/attribute.type'
 export * from './type/attribute-value-type.type'
 export * from './type/attribute-type.type'
 export * from './mapper'