diff --git a/packages/core/src/command/index.ts b/packages/core/src/command/index.ts
index 9ba3868c3..3b2d0f0b6 100644
--- a/packages/core/src/command/index.ts
+++ b/packages/core/src/command/index.ts
@@ -190,6 +190,14 @@ export class Commander {
       throw new Error('internal.invalid-natural')
     }, { numeric: true })
 
+    this.domain('bigint', (source, session) => {
+      try {
+        return BigInt(source)
+      } catch {
+        throw new Error("internal.invalid-integer")
+      }
+    }, { numeric: true })
+
     this.domain('date', (source, session) => {
       const timestamp = Time.parseDate(source)
       if (+timestamp) return timestamp
diff --git a/packages/core/src/command/parser.ts b/packages/core/src/command/parser.ts
index dc967529d..85103de4d 100644
--- a/packages/core/src/command/parser.ts
+++ b/packages/core/src/command/parser.ts
@@ -182,6 +182,7 @@ export namespace Argv {
     integer: number
     posint: number
     natural: number
+    bigint: bigint
     date: Date
     img: JSX.IntrinsicElements['img']
     image: JSX.IntrinsicElements['img']