diff --git a/README.md b/README.md
index 95cd303..7866115 100644
--- a/README.md
+++ b/README.md
@@ -194,7 +194,7 @@ const API_KEY = 'xxx';
 const PRIVATE_KEY = 'yyy';
 const useLivenet = false;
 
-const client = new javascript(
+const client = new SpotClient(
   API_KEY,
   PRIVATE_KEY,
 
diff --git a/src/inverse-client.ts b/src/inverse-client.ts
index 946beff..31bd5d4 100644
--- a/src/inverse-client.ts
+++ b/src/inverse-client.ts
@@ -294,6 +294,7 @@ export class InverseClient extends SharedEndpoints {
   setUserLeverage(params: {
     symbol: string;
     leverage: number;
+    leverage_only?: boolean;
   }): GenericAPIResponse {
     return this.requestWrapper.post('v2/private/position/leverage/save', params);
   }