diff --git a/src/CashuWallet.ts b/src/CashuWallet.ts
index 4e783bf5..2518664a 100644
--- a/src/CashuWallet.ts
+++ b/src/CashuWallet.ts
@@ -339,7 +339,7 @@ class CashuWallet {
 		const mintQuotePayload: MintQuotePayload = {
 			unit: this._unit,
 			amount: amount,
-			description: description || null
+			description: description
 		};
 		return await this.mint.createMintQuote(mintQuotePayload);
 	}
diff --git a/src/model/types/wallet/payloads.ts b/src/model/types/wallet/payloads.ts
index 70855dea..7e8b6766 100644
--- a/src/model/types/wallet/payloads.ts
+++ b/src/model/types/wallet/payloads.ts
@@ -101,7 +101,7 @@ export type MintQuotePayload = {
 	/**
 	 * Description for the invoice
 	 */
-	description: string | null;
+	description?: string;
 };
 
 /**