diff --git a/src/test/index.ts b/src/test/index.ts
index 1d3d7d9..d68e245 100644
--- a/src/test/index.ts
+++ b/src/test/index.ts
@@ -211,6 +211,14 @@ client.on('messageCreate', async (msg: Message) => {
       msg.member as Member
     )
     msg.channel.send(`Your permissions:\n${permissions.toArray().join('\n')}`)
+  } else if (msg.content === '!addAllRoles') {
+    const roles = await msg.guild?.roles.array()
+    if (roles !== undefined) {
+      roles.forEach(async (role) => {
+        await msg.member?.roles.add(role)
+        console.log(role)
+      })
+    }
   }
 })
 
diff --git a/src/utils/bitfield.ts b/src/utils/bitfield.ts
index 8631f1f..cb8a93c 100644
--- a/src/utils/bitfield.ts
+++ b/src/utils/bitfield.ts
@@ -104,11 +104,11 @@ export class BitField {
     if (bit instanceof BitField) return this.resolve(flags, bit.bitfield)
     if (Array.isArray(bit))
       return (bit.map as any)((p: any) => this.resolve(flags, p)).reduce(
-        (prev: any, p: any) => prev | p,
+        (prev: bigint, p: bigint) => prev | p,
         0
       )
     if (typeof bit === 'string' && typeof flags[bit] !== 'undefined')
-      return flags[bit]
+      return BigInt(flags[bit])
     const error = new RangeError('BITFIELD_INVALID')
     throw error
   }