diff --git a/cryptonote_utils/biginteger.d.ts b/cryptonote_utils/biginteger.d.ts
index 891843c..37e2db9 100644
--- a/cryptonote_utils/biginteger.d.ts
+++ b/cryptonote_utils/biginteger.d.ts
@@ -291,7 +291,7 @@ declare namespace BigInteger {
 		 * @returns {BigInteger}
 		 * @memberof BigInteger
 		 */
-		parse(s: string, base?: number): BigInteger;
+		static parse(s: string, base?: number): BigInteger;
 
 		/**
 		 * @description Add two <BigIntegers>.