diff --git a/docs/Lease.md b/docs/Lease.md
index 561cbd272..32eb49fb6 100644
--- a/docs/Lease.md
+++ b/docs/Lease.md
@@ -46,7 +46,7 @@ The Lease interface provides methods to grant, revoke, and keepalive leases.
 1. This function is called periodically by `keepAliveSchedule`.
 2. The lease may expire as:
      * The etcd respond overtime.
-     * The client faile to send request in time.
+     * The client fails to send request in time.
 3. It will scan the keepAlives map and find the leases that requires keepAlive requests to send based on its nextKeepAliveTime.
 4. Send request to the StreamObserver for these leases.
 
@@ -66,4 +66,4 @@ The Lease interface provides methods to grant, revoke, and keepalive leases.
 
 1. The StreamObserver is the stream etcd uses to send responses.
 2. The gRPC client calls onNext when etcd server delivers a response.
-3. The onNext function will call `processKeepAliveRespond`.
\ No newline at end of file
+3. The onNext function will call `processKeepAliveRespond`.