diff --git a/api/client.go b/api/client.go
index 6115e6a..bf26724 100644
--- a/api/client.go
+++ b/api/client.go
@@ -13,7 +13,7 @@
 
 // +build go1.7
 
-// Package api provides clients the HTTP API's.
+// Package api provides clients for the HTTP APIs.
 package api
 
 import (
diff --git a/api/prometheus/v1/api.go b/api/prometheus/v1/api.go
index 421f181..734a12e 100644
--- a/api/prometheus/v1/api.go
+++ b/api/prometheus/v1/api.go
@@ -70,7 +70,7 @@ type Range struct {
 	Step time.Duration
 }
 
-// API provides bindings the Prometheus's v1 API.
+// API provides bindings for Prometheus's v1 API.
 type API interface {
 	// Query performs a query for the given time.
 	Query(ctx context.Context, query string, ts time.Time) (model.Value, error)