diff --git a/options.go b/options.go
index dff52ae8b..f6e5078fe 100644
--- a/options.go
+++ b/options.go
@@ -235,7 +235,7 @@ func NewDialer(opt *Options) func(context.Context, string, string) (net.Conn, er
 	}
 }
 
-// ParseURL parses an URL into Options that can be used to connect to Redis.
+// ParseURL parses a URL into Options that can be used to connect to Redis.
 // Scheme is required.
 // There are two connection types: by tcp socket and by unix socket.
 // Tcp connection: