diff --git a/.prettierignore b/.prettierignore
index d8c1f205..54808cb7 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -16,9 +16,6 @@ packages/contracts/deployed-contracts/undefined.json
 packages/contracts/deployed-contracts/hardhat.json
 packages/contracts/deployed-contracts/localhost.json
 
-# types
-types
-
 # circuits
 circuits
 
diff --git a/packages/group/src/types/index.ts b/packages/group/src/types/index.ts
index 49776551..cf1d4d67 100644
--- a/packages/group/src/types/index.ts
+++ b/packages/group/src/types/index.ts
@@ -1 +1 @@
-export type BigNumberish = string | number | bigint;
+export type BigNumberish = string | number | bigint