diff --git a/viper.go b/viper.go
index c65881a..5133de7 100644
--- a/viper.go
+++ b/viper.go
@@ -3,7 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
-// Viper is a application configuration system.
+// Viper is an application configuration system.
 // It believes that applications can be configured a variety of ways
 // via flags, ENVIRONMENT variables, configuration files retrieved
 // from the file system, or a remote key/value store.