diff --git a/packages/rlp/src.ts/index.ts b/packages/rlp/src.ts/index.ts
index 8fd3aa853..1c3cc057f 100644
--- a/packages/rlp/src.ts/index.ts
+++ b/packages/rlp/src.ts/index.ts
@@ -126,7 +126,7 @@ function _decode(data: Uint8Array, offset: number): { consumed: number, result:
     } else if (data[offset] >= 0x80) {
         let length = data[offset] - 0x80;
         if (offset + 1 + length > data.length) {
-            throw new Error("invlaid rlp data");
+            throw new Error("invalid rlp data");
         }
 
         let result = hexlify(data.slice(offset + 1, offset + 1 + length));